It took a chase but it was worth it to catch the January 20, 2019 total eclipse of the Moon in the winter sky.
While the internet and popular press fawned over the bogus moniker of “Super Blood Wolf” Moon, to me this was the “Cold Moon” eclipse. And I suspect that was true for many other observers and eclipse chasers last Sunday.
Total solar eclipses almost always involve a chase, usually to far flung places around the world to stand in the narrow shadow path. But total lunar eclipses (TLEs) come to you, with more than half the planet able to view the Moon pass through the Earth’s shadow and turn red for several minutes to over an hour.
The glitch is clouds. For several of the last TLEs I have had to chase, to find clear skies in my local area, creating pre-eclipse stress … and post-eclipse relief!
That was the case for the January 20, 2019 total lunar, as the weather predictions above, based on Environment Canada data, were showing east-central Alberta along the Saskatchewan border as the only clear hole within range and accessible.
The above is a screen shot from the wonderful app Astrospheric, a recommended and great aid to astronomers. In 2014, 2015, and 2018 the Environment Canada predictions led me to clear skies, allowing me to see an eclipse that others in my area missed.
So trusting the predictions, the day before the eclipse I drove the 5 hours and 500 km north and east to Lloydminster, a town where the provincial border runs right down the main street, Highway 17.
The morning of the evening eclipse, I drove up and down that highway looking for a suitable site to setup. Scenery was not in abundance! It’s farm land and oil wells. I settled for a site shown above, an access road to a set of wells and tanks where I would likely not be disturbed, that had no lights, and had a clear view of the sky.
The image above is from the iOS app Theodolite, another fine app for planning and scouting sites, as it overlays where the camera was looking.
Scenery was not a priority as I was mostly after a telephoto view of the eclipsed Moon near the Beehive star cluster. Wide views would be a bonus if I could get them, for use in further ebook projects, as is the plan for the image below.
The site, which was east of the border in Saskatchewan, served me well, and the skies behaved just as I had hoped, with not a cloud nor haze to interfere with the view. It was a long and cold 5-hour night on the Prairies, with the temperature around -15° C.
It could have been worse, with -25° not uncommon at this time of year. And fortunately, the wind was negligible, with none of the problems with frost that can happen on still nights.
Nevertheless, I kept my photo ambitions in check, as in the cold much can go wrong and running two cameras was enough!
Above was the main image I was after, capturing the red Moon shining next to the Beehive star cluster, a sight we will not see again for another 18-year-long eclipse “saros,” in January 2037.
But I shot images every 10 minutes, to capture the progression of the Moon through the shadow of the Earth, for assembly into a composite. I’d pick the suitable images later and stack them to produce a view of the Moon and umbral shadow outline set amid the stars.
Above is the final result, showing the outline of the circular umbral shadow of the Earth defined by the shadow edge on the partially eclipsed Moons. The umbra is about three times the size of the Moon. And at this eclipse the Moon moved across the northern half of the shadow.
So mission accomplished!
I usually try to take a “trophy” shot of the successful eclipse chaser having bagged his game. This is it, from mid-eclipse during totality, with the red Moon shining in the winter sky beside the Beehive.
With this eclipse I can now say I have seen every total lunar eclipse visible from my area of the world since May 2003. I’m not counting those TLEs that were visible from only the eastern hemisphere — I’m not so avid as to chase those. And there were a couple of TLEs in that time that were visible from North America, but not from Alberta. So I’m not counting those.
And a couple of TLEs that were visible from here I did not see from here in Alberta — I saw April 15, 2014 from Australia and April 4, 2015 from Utah.
With that tally I’ve seen all the locally visible TLEs over a full saros cycle, 18 years. The last local TLE I missed was January 20, 2000, exactly 19 years — a Metonic cycle — ago. It must have been cloudy!
The next total eclipse of the Moon is May 26, 2021, visible from Alberta as the Moon sets at dawn. I’d like to be in Australia for that one (depicted above in a screen shot from StarryNight™), to see the eclipsed Moon beside the galactic centre as both rise in the east, a sight to remember. Being late austral autumn, that will be a “cool Moon.”
On the evening of January 20 for North America, the Full Moon passes through the umbral shadow of the Earth, creating a total eclipse of the Moon.
No, this isn’t a “blood,” “super,” nor “wolf” Moon. All those terms are internet fabrications designed to bait clicks.
It is a totallunareclipse — an event that doesn’t need sensational adjectives to hype, because they are always wonderful sights! And yes, the Full Moon does turn red.
As such, on January 20 the evening and midnight event provides many opportunities for great photos of a reddened Moon in the winter sky.
Here’s my survey of tips and techniques for capturing the eclipsed Moon.
First … What is a Lunar Eclipse?
As the animation below shows (courtesy NASA/Goddard Space Flight Center), an eclipse of the Moon occurs when the Full Moon (and they can happen only when the Moon is exactly full) travels through the shadow of the Earth.
The Moon does so at least two times each year, though often not as a total eclipse, one where the entire disk of the Moon enters the central umbral shadow. Many lunar eclipses are of the imperceptible penumbral variety, or are only partial eclipses.
Total eclipses of the Moon can often be years apart. The last two were just last year, on January 31 and July 27, 2018. However, the next is not until May 26, 2021.
At any lunar eclipse we see an obvious darkening of the lunar disk only when the Moon begins to enter the umbra. That’s when the partial eclipse begins, and we see a dark bite appear on the left edge of the Moon.
While it looks as if Earth’s shadow sweeps across the Moon, it is really the Moon moving into, then out of, our planet’s umbra that causes the eclipse. We are seeing the Moon’s revolution in its orbit around Earth.
At this eclipse the partial phases last 67 minutes before and after totality.
Once the Moon is completely immersed in the umbra, totality begins and lasts 62 minutes at this eclipse, a generous length.
The Moon will appear darkest and reddest at mid-eclipse. During totality the lunar disk is illuminated only by red sunlight filtering through Earth’s atmosphere. It is the light of all the sunsets and sunrises going on around our planet.
And yes, it is perfectly safe to look at the eclipsed Moon with whatever optics you wish. Binoculars often provide the best view. Do have a pair handy!
At this eclipse because the Moon passes across the north half of the umbra, the top edge of the Moon will always remain bright, as it did above in 2010, looking like a polar cap on the reddened Moon.
Near the bright edge of the umbra look for subtle green and blue tints the eye can see and that the camera can capture.
Where is the Eclipse?
As the chart below shows, all of the Americas can see the entire eclipse, with the Moon high in the evening or late-night sky. For the record, the Moon will be overhead at mid-eclipse at local midnight from Cuba!
I live in Alberta, Canada, at a latitude of 50 degrees North. And so, the sky charts I provide here are for my area, where the Moon enters the umbral shadow at 8:35 p.m. MST with the Moon high in the east. By the end of totality at 10:44 p.m. MST the Moon shines high in the southeast. This sample chart is for mid-eclipse at my site.
I offer them as examples of the kinds of planning you can do to ensure great photos. I can’t provide charts good for all the continent because exactly where the Moon will be during totality, and the path it will take across your sky will vary with your location.
In general, the farther east and south you live in North America the higher the Moon will appear. But from all sites in North America the Moon will always appear high and generally to the south.
The latter two apps present the sightlines toward the Moon overlaid on a map of your location, to help you plan where to be to shoot the eclipsed Moon above a suitable foreground, if that’s your photographic goal.
When is the Eclipse?
While where the Moon is in your sky depends on your site, the various eclipse events happen at the same time for everyone, with differences in hour due only to the time zone you are in.
While all of North America can see the entirety of the partial and total phases of this eclipse (lasting 3 hours and 16 minutes from start to finish), the farther east you live the later the eclipse occurs, making for a long, late night for viewers on the east coast.
Those in western North America can enjoy all of totality and be in bed at or before midnight.
Here are the times for the start and end of the partial and total phases. Because the penumbral phases produce an almost imperceptible darkening, I don’t list the times below for the start and end of the penumbral eclipse.
PM times are on the evening of January 20.
AM times are after midnight on January 21.
Note that while some sources list this eclipse as occurring on January 21, that is true for Universal Time (Greenwich Time) and for sites in Europe where the eclipse occurs at dawn near moonset.
For North America, if you go out on the evening of January 21 expecting to see the eclipse you’ll be a day late and disappointed!
Picking a Photo Technique
Lunar eclipses lend themselves to a wide range of techniques, from a simple camera on a tripod, to a telescope on a tracking mount following the sky.
If this is your first lunar eclipse I suggest keeping it simple! Select just one technique, to focus your attention on only one camera on a cold and late winter night.
Then during the hour of totality take the time to enjoy the view through binoculars and with the unaided eye. No photo quite captures the glowing quality of an eclipsed Moon. But here’s how to try it.
Option 1: Simple — Camera-on-Tripod
The easiest method is to take single shots using a very wide-angle lens (assuming you also want to include the landscape below) with the camera on a fixed tripod. No fancy sky trackers are needed here.
During totality, with the Moon now dimmed and in a dark sky, use a good DSLR or mirrorless camera in Manual (M) mode (not an automatic exposure mode) for settings of 2 to 20 seconds at f/2.8 to f/4 at ISO 400 to 1600.
That’s a wide range, to be sure, but it will vary a lot depending on how bright the sky is at your site. Shoot at lots of different settings, as blending multiple exposures later in processing is often the best way to reproduce the scene as your eyes saw it.
Shoot at a high ISO if you must to prevent blurring from sky motion. However, lower ISOs, if you can use them by choosing a slower shutter speed or wider lens aperture, will yield less digital noise.
Focus carefully on a bright star, as per the advice below for telephoto lenses. Don’t just set the lens focus to infinity, as that might not produce the sharpest stars.
One scene to go for at this eclipse is similar to the above photo, with the reddened Moon above a winter landscape and shining east of Orion and the winter Milky Way. But that will require shooting from a dark site away from urban lights. But when the Moon is totally eclipsed, the sky will be dark enough for the Milky Way to appear.
The high altitude of the Moon at mid-eclipse from North America (with it 40 to 70 degrees above the horizon) will also demand a lens as wide as 10mm to 24mm, depending whether you use portrait or landscape orientation, and if your camera uses a cropped frame or full frame sensor. The latter have the advantage in this category of wide-angle nightscape.
Alternatively, using a longer 14mm to 35mm lens allows you to frame the Moon beside Orion and the winter Milky Way, as above, but without the landscape. Again, this will require a dark rural site.
If you take this type of image with a camera on a fixed tripod, use high ISOs to keep exposures below 10 to 20 seconds to avoid star trailing. You have an hour of totality to shoot lots of exposures to make sure some will work best.
If you have a sky tracker to follow the stars, as I did above, exposures can be much longer — perhaps a minute to pick up the Milky Way really well — and ISOs can be lower to avoid noise.
Option 1 Variation — Urban Eclipses
Unfortunately, point-and-shoot cameras and so-called “bridge” cameras, ones with non-interchangeable lenses, likely won’t have lenses wide enough to capture the whole scene, landscape and all. Plus their sensors will be noisy when used at high ISOs. Those cameras might be best used to capture moderate telephoto closeups at bright urban sites.
With any camera, at urban sites look for scenic opportunities to capture the eclipsed Moon above a skyline or behind a notable landmark. By looking up from below you might be able to frame the Moon beside a church spire, iconic building, or a famous statue using a normal or short telephoto lens, making this a good project for those without ultra-wide lenses.
Whatever your lens or subject, at urban sites expose as best you can for the foreground, trying to avoid any bright and bare lights in the frame that will flood the image with lens flares in long exposures.
Capturing such a scene during the deep partial phases might produce a brighter Moon that stands out better in an urban sky than will a photo taken at mid-totality when the Moon is darkest.
TIP: Practice, Practice, Practice!
With any camera, especially beginner point-and-shoots, ensure success on eclipse night by practicing shooting the Moon before the eclipse, during the two weeks of the waxing Moon leading up to Full Moon night and the eclipse.
The crescent Moon with Earthshine on the dark side of the Moon is a good stand-in for the eclipsed Moon. Set aside the nights of January 8 to 11 to shoot the crescent Moon. Check for exposure and focus. Can you record the faint Earthshine? It’s similar in brightness to the shadowed side of the eclipsed Full Moon.
The next week, on the nights of January 18 and 19, the waxing gibbous Moon will be closer to its position for eclipse night and almost as bright as the uneclipsed Full Moon, allowing some rehearsals for shooting it near a landmark.
Option 2: Advanced — Multiple Exposures
An advanced method is to compose the scene so the lens frames the entire path of the Moon for the 3 hours and 16 minutes from the start to the end of the partial eclipse.
As shown above, including the landscape will require at least a 20mm lens on a full frame camera, or 12mm lens on a cropped frame camera. However, these charts are for my site in western Canada. From sites to the east and south where the Moon is higher an even wider lens might be needed, making this a tough sequence to take.
With wide lenses, the Moon will appear quite small. The high altitude of the Moon and midnight timing won’t lend itself to this type of multiple image composite as well as it does for eclipses that happen near moonrise or moonset, as per the example below.
A still-image composite with the lunar disks well separated will need shots only every 5 minutes, as I did above for the September 27, 2015 eclipse.
Exposures for any lunar eclipse are tricky, whether you are shooting close-ups or wide-angles, because the Moon and sky change so much in brightness.
As I did for the image below, for a still-image composite, you can expose just for the bright lunar disk and let the sky go dark.
Exposures for just the Moon will range from very short (about 1/500th second at f/8 and ISO 100) for the partials, to 1/2 to 2 seconds at f/2.8 to f/4 and ISO 400 for the totals, then shorter again (back to 1/500 at ISO 100) for the end shots when the Full Moon has returned to its normal brilliance.
That’ll take constant monitoring and adjusting throughout the shoot, stepping the shutter speed gradually longer thorough the initial partial phase, then shorter again during the post-totality partial phase.
You’d then composite and layer (using a Lighten blend mode) the well-exposed disks (surrounded by mostly black sky) into another background image exposed longer for 10 to 30 seconds at ISO 800 to 1600 for the sky and stars, shot at mid-totality.
To maintain the correct relative locations of the lunar disks and foreground, the camera cannot move.
That technique works best if it’s just a still image you are after, such as above. This image is such a composite, of the April 4, 2015 total lunar eclipse from Monument Valley, Utah.
This type of composite takes good planning and proper exposures to pull off, but will be true to the scene, with the lunar disk and its motion shown to the correct scale and position as it was in the sky. It might be a composite, but it will be accurate.
That’s in stark contrast to the flurry of ugly “faked” composites that will appear on the web by the end of the day on January 21, ones with huge telephoto Moons pasted willy-nilly onto a wide-angle sky.
Rather than look artistic, most such attempts look comically cut-and-pasted. They are amateurish. Don’t do it!
Option 3: Advanced — Wide-Angle Time-Lapses
If it’s a time-lapse movie you want (see the video below), take exposures every 10 to 30 seconds, to ensure a final movie with smooth motion.
Unlike shooting for a still-image composite, for a time lapse each frame will have to be exposed well enough to show the Moon, sky, and landscape.
That will require exposures long enough to show the sky and foreground during the partial phases — likely about 1 to 4 seconds at f/2.8 and ISO 400. In this case, the disk of the partially-eclipsed Moon will greatly overexpose, as it does toward the end of the above time-lapse from September 27, 2015..
But the Moon will darken and become better exposed during the late stages of the partial eclipse and during totality when a long exposure — perhaps now 10 to 20 seconds at f/2.8 and ISO 800 to 1600 — will record the bright red Moon amid the stars and winter Milky Way.
Maintaining a steady cadence during the entire sequence requires using an interval long enough throughout to accommodate the expected length of the longest exposure at mid-totality, with similar camera settings to what you’ve used for other Milky Way nightscapes. If you’ve never taken those before, then don’t attempt this complex sequence.
After totality, as the Moon and sky re-brighten, exposures will have to shorten again, andsymmetrically in reverse fashion for the final partial phases.
Such a time-lapse requires consistently and incrementally adjusting the camera over the three or more hours of the eclipse on a cold winter night. The high altitude of the Moon and its small size on the required wide angle lenses will make any final time lapse less impressive than at eclipses that occur when the Moon is rising or setting.
But … the darkening of the sky and “turning on” of the Milky Way during totality will make for an interesting time-lapse effect. The sky and scene will be going from a bright fully moonlit night to effectively a dark moonless night, then back to moonlit. It’s a form of “holy grail” time lapse, requiring advanced processing with LRTimelapse software.
Again, do not move the camera. Choose your lens and frame your camera to include the entire path of the Moon for as long as you plan to shoot.
Even if the final movie looks flawed, individual frames should still produce good still images, or a composite built from a subset of the frames.
Option 4: Simple — Telephoto Close-Ups
The first thought of many photographers is to shoot the eclipse with as long a telephoto lens as possible. That can work, but …
The harsh reality is that the Moon is surprisingly small (only 1/2-degree across) and needs a lot of focal length to do it justice, if you want a lunar close-up.
You’ll need a 300mm to 800mm lens. Unfortunately, the Moon and sky are moving and any exposures over 1/4 to 2 seconds (required during totality) will blur the Moon badly if its disk is large on the frame and all you are using is a fixed tripod.
If you don’t have a tracking mount, one solution is to keep the Moon’s disk small (using no more than a fast f/2 or f/2.8 135mm to 200mm lens) and exposures short by using a high ISO speed of 1600 to 3200. Frame the Moon beside the Beehive star cluster as I show below.
Take a range of exposures. But … be sure to focus!
TIP: Focus! And Focus Again!
Take care to focus precisely on a bright star using Live View. That’s true of any lens but especially telephotos and telescopes.
Focus not just at the start of the night, but also more than once again later at night. Falling temperatures on a winter night will cause long lenses and telescopes to shift focus. What was sharp at the start of the eclipse won’t be by mid totality.
The catch is that if you are shooting for a time-lapse or composite you likely won’t be able to re-point the optics to re-focus on a star in mid-eclipse. In that case, be sure to set up the gear well before you want to start shooing to let it cool to ambient air temperature. Now focus on a star, then frame the scene. Then hope the lens doesn’t shift off focus. You might be able to focus on the bright limb of the Moon but it’s risky.
Fuzzy images, not bad exposures, are the ruin of most attempts to capture a lunar eclipse, especially with a telephoto lens. And the Moon itself, especially during totality, is not a good target to focus on. Use a bright star. The winter sky has lots!
Option 5: Advanced — Tracked Telescopic Close-Ups
If you have a mount that can be polar aligned to track the sky, then many more options are open to you.
You can use a telescope mount or one of the compact and portable trackers, such as the Sky-Watcher Star Adventurer (I show the Mini model above) or iOptron Sky Tracker units. While these latter units work great, you are best to keep the payload weight down and your lens size well under 300mm.
That’s just fine for this eclipse, as you really don’t need a frame-filling Moon. The reason is that the Moon will appear about 6 degrees west of the bright star cluster called the Beehive, or Messier 44, in Cancer.
As shown above, a 135mm to 200mm lens will frame this unique pairing well. For me, that will be the signature photo of this eclipse. The pairing can happen only at lunar eclipses that occur in late January, and there won’t be any more of those until 2037!
That’s the characteristic that makes this eclipse rare and unique, not that it’s a “super-duper, bloody, wolf Moon!” But it doesn’t make for a catchy headline.
Exposures to show the star cluster properly might have to be long enough (30 to 120 seconds) that the Moon overexposes, even at mid-totality. If so, take different exposures for the Moon and stars, then composite them later, as I did above for the December 20, 2010 eclipse near the Messier 35 star cluster in Gemini.
If really you want to shoot with even more focal length for framing just the Moon, a monster telephoto lens will work, but a small telescope such as an 80mm aperture f/6 to f/7 refractor will provide enough focal length and image size at much lower cost and lighter weight, and be easier to attach to a telescope mount.
But even with a 500mm to 800mm focal length telescope the Moon fills only a small portion of the frame, though cropped frame cameras have the advantage here. Use one if it’s a big Moon you’re after!
No matter the camera, the lens or telescope should be mounted on a solid equatorial telescope mount that you must polar align earlier in the night to track the sky.
Alternatively, a motorized Go To telescope on an alt-azimuth mount will work, but only for single shots. The rotation of the field with alt-az mounts will make a mess of any attempts to shoot multiple-exposure composites or time-lapses, described below.
Whatever the mount, for the sharpest lunar disks during totality, use the Lunar tracking rate for the motor.
Assuming an f-ratio of f/6 to f/8, exposures will vary from as short as 1/250th second at ISO 100 to 200 for the barely eclipsed Moon, to 4 to 20 seconds at ISO 400 to 1600 for the Moon at mid-totality.
It’s difficult to provide a precise exposure recommendation for totality because the brightness of the Moon within the umbra can vary by several stops from eclipse to eclipse, depending on how much red sunlight manages to make it through Earth’s atmospheric filter to light the Moon.
TIP: Shoot for HDR
As I did above, during the deep partial phases an option is to shoot both long, multi-second exposures for the red umbra and short, split-second exposures for the bright part of the Moon not yet in the umbra.
Take 5 to 7 shots in rapid succession, covering the range needed, perhaps at 1-stop increments. Merge those later with High Dynamic Range (HDR) techniques and software, or with luminosity masks.
Even if you’re not sure how to do HDR processing now, shoot all the required exposures anyway so you’ll have them when your processing skills improve.
Option 6: Advanced — Close-Up Composites and Time-Lapses
With a tracking telescope on an equatorial mount you could fire shots every 10 to 30 seconds, and then assemble them into a time-lapse movie, as below.
But as with wide-angle time-lapses, that will demand constant attention to gradually and smoothly shift exposures, ideally by 1/3rd-stop increments every few shots during the partial and total phases. Make lots of small adjustments, rather than fewer large ones.
If you track at the lunar rate, as I did above, the Moon should stay more or less centred while it drifts though the stars, assuming your mount is accurately polar aligned, an absolutely essential prerequisite here.
Conversely, track at the sidereal rate and the stars will stay more or less fixed while the Moon drifts through the frame from right to left (west to east) as I show above in a composite of the October 27, 2004 eclipse.
But such a sequence takes even more careful planning to position the Moon correctly at the start of the sequence so it remains “in frame” for the duration of the eclipse, and ends up where you want at the end.
In the chart below, north toward Polaris is at the top of the frame. Position the Moon at the start of the eclipse so it ends up just above the centre of the frame at mid-eclipse. Tricky!
As I show above, for this type of “Moon-thru-shadow” sequence a focal length of about 400mm is ideal on a full frame camera, or 300mm on a cropped frame camera.
From such a time-lapse set you could also use several frames selected from key stages of the eclipse, as I did in 2004, to make up a multiple-image composite showing the Moon moving through the Earth’s shadow.
Again, planetarium software such as Starry Night I used above, which can be set to display the field of view of the camera and lens of your choice, is essential to plan the shoot. Don’t attempt it without the right software to plan the framing.
I would consider the telescopic time-lapse method the most challenging of techniques. Considering the hour of the night and the likely cold temperatures, your best plan might be to keep it simple.
It’s what I plan to do.
I’ll be happy to get a tracked telephoto close-up of the Moon and Beehive cluster as my prime goal, with a wide-angle scene of the eclipsed Moon beside Orion and the Milky Way as a bonus. A few telescope close-ups will be even more of a bonus.
However, just finding clear skies might be the biggest challenge!
Try the Astrospheric app for astronomy-oriented weather predictions. The Environment Canada data it uses has led me to clear skies for several recent eclipses that other observers in my area missed.
It’ll be worth the effort to chase!
The next total eclipse of the Moon anywhere on Earth doesn’t occur until May 26, 2021 in an event visible at dawn from Western North America. The next total lunar eclipse visible from all of North America comes a lunar year later, on May 15, 2022.
Total Lunar Eclipse from Alan Dyer on Vimeo.
I leave you with a music video of the lunar eclipse of September 27, 2015 that incorporates still and time-lapse sequences shot using all of the above methods.
The first total lunar eclipse in 2.5 years provides lots of opportunities for some great photos.
On the morning of January 31, before sunrise for North America, the Full Moon passes through the umbral shadow of the Earth, creating the first total eclipse of the Moon since September 27, 2015.
The pre-dawn event provides many photo opportunities. Here’s my summary of tips and techniques for capturing the eclipsed Moon.
But First … What is a Lunar Eclipse?
As the animation (courtesy NASA/Goddard Space Flight Center) shows, an eclipse of the Moon occurs when the Full Moon (and they can happen only when the Moon is exactly full) travels through the shadow of the Earth.
The Moon does so at least two times a year, though often not as a total eclipse, one where the entire disk of the Moon is engulfed by the umbra.
When the Moon is within only the outer penumbral shadow we see very little effect, with a barely perceptible darkening of the Moon, if that. I don’t even list the times below for the start and end of the penumbral phases.
It’s only when the Moon begins to enter the central umbral shadow that we see an obvious effect. That’s when the partial eclipse begins, and we see a dark bite appear on the left edge of the Moon. The shadow appears to creep across the Moon to darken more of its disk. While it looks like the shadow is moving across the Moon, it is really the Moon moving into, then out of, the umbral shadow that causes the eclipse.
At this eclipse the partial phases last about an hour before and after totality.
Once the Moon is completely immersed in the umbra, totality begins, and lasts 77 minutes at this eclipse, a generous length. However, in North America, only sites in the western half of the continent get to see all or most of totality.
Where is the Eclipse?
As the chart above shows, the Pacific area including Hawaii, Australia, and eastern Asia can see the entire eclipse with the Moon high in the evening or midnight sky.
Most of North America (my tips are aimed at North American photographers) can see at least some part of this eclipse.
From the eastern half of the continent the Moon sets at sunrise during either totality (from the central areas of North America), or during the first partial phases (from eastern North America). Those in the east can take advantage of interesting photo opportunities by capturing the partially eclipsed Moon setting in the west in the dawn twilight.
However, the most dramatic images of a deep red Moon in the western sky, such as above, will be possible only from the west. And even then, the further north and west you live, the better your view.
Even from the southwestern United States the Moon sets just after the end of totality, requiring a site with a low and clear horizon to the west in order to see the whole event.
I live in Alberta, Canada, and the diagrams I provide here are for my area, where the Moon sets during the final partial phase. I offer them as examples of the kinds of planning you can do to ensure great photos. But exactly where the Moon will be during totality, and where and when it will set on your horizon, will depend on your location.
The latter two apps present the sightlines toward the Moon overlaid on a map of your location, to help you plan where to be to shoot the eclipsed Moon setting behind a suitable foreground.
When is the Eclipse?
While where the Moon is in your sky depends on your site, the various eclipse events happen at the same time for everyone, with differences in hour due only to the time zone you are in.
Here are the times for the start and end of the partial and total phases.
Note that all times are A.M., in the early morning, before sunrise, on January 31. Go out at 6 P.M. on the evening of January 31 and you’ll be 12 hours too late. You missed it!
All times are A.M. on January 31. “—“ means the event is not visible; the Moon has set.
The time of moonset at your site will vary with your location. Use planning apps to calculate your local moonset time.
Picking a Site
No matter where you are in North America you want a site with a good view to the west and northwest, preferably with a clear view of a relatively unobstructed but photogenic horizon.
While having an eclipse occur at dawn (or at dusk) does limit the amount of eclipse we can see, it has the benefit of providing many more photo opportunities of the eclipsed Moon above a scenic landscape or foreground element.
From eastern North America you will have to be content with images of the partially eclipsed Moon setting, similar to the image above of a rising partially-eclipsed Moon.
From the centre of the continent, where the Moon sets during totality, the dim, reddened Moon is likely to disappear into the brightening sky. Remember, when the Moon is full it sets just as the Sun rises. So shots of a red Moon right on the horizon aren’t likely to be possible. The Moon will be too dim and the sky too bright.
From sites in the west, the Moon will set either just at the end of totality or shortly afterwards, making the Moon brighter and more obvious in the sunrise sky, as the foreground in the west lights up with red light from the Sun rising in the east.
It is that same red sunlight filtered by our atmosphere that continues on into our planet’s shadow and lights the Moon red during totality.
Picking a Technique
Lunar eclipses lend themselves to a wide range of techniques, from a simple camera on a tripod, to a telescope on a tracking mount following the sky.
What you use depends not only on the gear you have on hand, but also on your site. It might not be practical to set up loads of gear at a scenic site you have to trek into — especially when you have to set up in the wee hours of a cold winter morning.
You could set up earlier that night on January 30, but only if your site is safe enough to leave the gear unattended while you sleep.
Keep it simple!
Option 1: Simple Camera-on-Tripod
The easiest method is to take single shots with a moderate wide-angle or normal lens with the camera on a fixed tripod. No fancy trackers are needed here.
If the sky is bright with twilight, you might be able to meter the scene and use Auto exposure.
But earlier in the night, with the Moon in a darker sky, as I show above, use Manual exposure and try settings of 1 to 10 seconds at f/2.8 to f/4 at ISO 400 to 1600. That’s a wide range, to be sure, but it will vary a lot depending on when you shoot and where you are, factors that will affect how bright the sky is at your site. Just shoot, check, and adjust.
Option 2: Advanced Camera-on-Tripod
A more advanced method is to compose the scene so the lens frames the entire path of the Moon from the start of the partial eclipse until moonset.
As shown above, that will take at least a 35mm lens on a full frame camera, or 20mm lens on a cropped frame camera.
Take exposures every 15 to 30 seconds if you want to turn the set into a time-lapse movie. But a still-image composite with the lunar disks well separated will need shots only every 5 to 10 minutes.
Such a composite takes good planning and proper exposures to pull off, but will be true to the scene, with the lunar disk and its motion shown to the correct scale as it was in the sky. That’s in stark contrast to the flurry of ugly “faked” composites that will appear on the web by the end of February 1, ones with huge telephoto Moons pasted willy-nilly onto a wide-angle sky. Don’t do it!
Exposures for any lunar eclipse are tricky, whether you are shooting closeups or wide-angles, because the Moon and sky change so much in brightness.
For wide-angle composites, you can expose just for the bright lunar disk and let the sky go dark. Exposures for just the Moon will range from very short (about 1/500th second at ISO 100) for the partials, to 1 to 2 seconds at ISO 400 for the totals, then shorter again (1/15 to 1/2 second at ISO 400) for the end shots in twilight when the Moon and sky may be similar in brightness. That’ll take constant monitoring and adjusting throughout the shoot.
As I did below, you’d then composite and layer the well-exposed disks into another background image exposed longer for the sky, likely shot in twilight. To maintain the correct relative locations of the lunar disks and foreground, the camera cannot move.
That technique works best if it’s just a still image you are after, such as below.
The above image is a composite of the April 4, 2015 total lunar eclipse from Monument Valley, Utah. That eclipse occurred under similar circumstances as this month’s eclipse, with the eclipse underway as the Moon set in the west at sunrise.
By comparison, the composite here is made of a few selected frames out of hundreds I took at 15-second intervals, and with each frame exposed for the sky, for use in a time-lapse movie. In this case, the Moon became overexposed at the end as it emerged from the umbra.
Indeed, if it’s a time-lapse movie you want (see the video linked to below), then each frame will have to be exposed well enough to show the sky and landscape.
While this method will overexpose the partially-eclipsed Moon, the Moon will darken and become better exposed throughout totality when the same long exposure for the reddened Moon might also work for the sky, to pick up stars. Exposures will have to shorten again as the sky brightens with twilight.
Again, constant baby-sitting and adjusting the camera will be needed. So if it’s cold where you are prepare for a frigid multi-hour shoot. I doubt you’ll be able to leave the camera on Auto exposure to run on its own, not until at least bright twilight begins.
Option 3: Telephoto Close-Ups
The Moon is surprisingly small (only 1/2-degree across) and needs a lot of focal length to do it justice.
For an “in-your-face” close-up of the eclipse you’ll need a 300mm to 800mm (!) lens. Unfortunately, the Moon and sky are moving and any exposures over 1 to 2 seconds (required during totality) will blur the Moon badly if its disk is large on the frame.
If you don’t have a tracking mount, one solution is to keep the Moon’s disk small (using no more than a fast f/2.8 200mm lens) and exposures short by using a high ISO speed.
Or plan to shoot with a telephoto only when the Moon is low in the sky, as I did above, when you can include the horizon which you would want to be sharp anyway. Framing the Moon and horizon won’t need a super telephoto.
The sky will then also be brighter and require short exposures that don’t need to be tracked. However, how bright and obvious the Moon will be will again depend on your location. This may or may not be a practical option, certainly not if the Moon is setting during mid-totality where you are.
Option 4: Tracked Telescopic Close-Ups
If you have a mount that can be polar aligned to track the sky, then more options are open to you.
You can use a telescope mount or one of the compact and portable trackers, such as the Sky-Watcher Star Adventurer or iOptron Sky Tracker units. While these latter units work great, you are best to keep the payload weight down and your lens size under 300mm.
That’s just fine for this eclipse, as you really don’t need a frame-filling Moon. The reason is that the Moon will appear about 4 degrees away from the bright star cluster called the Beehive, or Messier 44, in Cancer. As shown above, a 200mm to 300mm lens will frame this unique pairing well.
Even so, exposures to show the cluster properly might have to be long enough that the Moon overexposes, even at mid-totality. If so, take different exposures for the Moon and stars and composite them later, as I did below.
If you do want to shoot with more focal length, a monster telephoto lens will work, but a small telescope such as an 80mm aperture f/6 to f/7 refractor will provide enough focal length and image size at much lower cost. But either way, the lens or telescope should be mounted on a solid equatorial telescope mount, and polar aligned to track the sky.
For the sharpest lunar disks, use the Lunar tracking rate.
Exposures will vary from as short as 1/500th second at ISO 100 to 200 for the barely eclipsed Moon, to 4 to 16 seconds at f/6 to f/8 and at ISO 400 to 1600 for the Moon at mid-totality.
As I did above, during the deep partial phases shoot both long exposures for the red umbra and short exposures for the bright part of the Moon not yet in the umbra. Merge those later with High Dynamic Range (HDR) techniques and software, or with luminosity masks.
Even if you’re not sure how to do this now, shoot all the required exposures anyway so you’ll have them when your processing skills improve.
Option 5: Time-Lapse Close-Ups
With a tracking telescope you could fire shots every 30 seconds or so, and then assemble them into a time-lapse movie.
But as with wide-angle time-lapses, that will take constant attention to gradually and smoothly shift exposures, ideally by 1/3rd-stop increments every few shots during the partial and total phases.
If you track at the lunar rate, as I did in the still image below and in the music video linked to at bottom, the Moon will stay centred while it drifts though the stars.
Track at the sidereal rate and the stars will stay more or less fixed while the Moon drifts through the frame from right to left (west to east). But that takes even more careful planning to position the Moon correctly at the start of the sequence so it remains “in frame” for the duration of the eclipse and ends up where you want at the end, which will occur with the Moon low in a bright sky.
Again, planetarium software such as Starry Night, which can be set to display a camera frame, is essential to plan the shoot.
Either way, do take care to accurately polar align your mount, or you’ll be confronted with the monumental task of having to manually align hundreds of images later. Trust me, I know!
I would consider the telescopic time-lapse method the most challenging of techniques.
Considering the hour of the night and the likely cold temperatures, your best plan might be to keep it simple. It’s what I plan to do. I’ll be happy to get a few good wide-angle still images, and perhaps a tracked telephoto close-up of the Moon and Beehive as a bonus.
While there is another total lunar eclipse (TLE) in six months on July 27/28, it is not visible at all from North America.
Our next TLE occurs 12 Full Moons, or one lunar year from now, on the night of January 20/21, 2019, when all of North America gets to watch totality at a more reasonable hour, though perhaps not at a more reasonable temperature.
I leave you with a music video of the last TLE, on September 27, 2015 that incorporates still and time-lapse sequences shot using all of the above methods.
However, while you can read all about how to shoot the eclipse, nothing beats actually shooting to ensure success. But how do you do that, when there’s only one eclipse?
Here are my “Top 10” suggestions:
Wide-Angle Shots – Shoot a Twilight Scene
The simplest way to shoot the eclipse is to employ a camera with a wide lens running on auto exposure to capture the changing sky colors and scene brightness.
Auto Exposure Check in Twilight
If you intend to shoot wide-angle shots of the eclipse sky and scene below, with anything from a mobile phone to a DSLR, practice shooting a time-lapse sequence or a movie under twilight lighting. Does your camera expose properly when set to Auto Exposure? If you are using a phone camera, does it have any issues focusing on the sky? How big a file does a movie create?
With Telephotos and Telescopes – Shoot the Filtered Sun
The toughest techniques involve using long lenses and telescopes to frame the eclipsed Sun up close. They need lots of practice.
Framing and Focusing
You’ll need to have your safe and approved solar filter purchased (don’t wait!) that you intend to use over your lens or telescope. With the filter in place, simply practice aiming your lens or telescope at the Sun at midday. It’s not as easy as you think! Then practice using Live View to manually focus on the edge of the Sun or on a sunspot. Can you get consistently sharp images?
Exposures of the filtered Sun will be the same as during the partial phases, barring cloud or haze, as above, that can lengthen exposure times. Otherwise, only during the thin crescent phases will shutter speeds need to be 2 to 3 stops (or EV steps) longer than for a normal Sun.
With the camera aimed away from the Sun (very important!), perhaps at a distant landscape feature, practice removing the filter quickly. Can you do it without jarring the camera and bumping it off target? Perhaps try this on the Moon at night as well, as it’s important to also test this with the camera and tripod aimed up high.
Ease of Use
With the Sun up high at midday (as it will be during the eclipse from most sites), check that you can still look through, focus, and operate the camera easily. Can you read screens in the bright daylight? What about once it gets darker, as in twilight, which is how dark it will get during totality.
If you are using an untracked tripod, check how much the Sun moves across your camera frame during several minutes. For videos you might make use of that motion. For still shots, you’ll want to ensure the Sun doesn’t move too far off center.
Aligning Tracking Mounts
If you plan to use a motorized equatorial mount capable of tracking the sky, “Plan A” might be to set it up the night before so it can be precisely polar aligned. But the reality is that you might need to move on eclipse morning. To prepare for that prospect, practice roughly polar aligning your mount during the day to see how accurate its tracking is over several minutes. Do that by leveling the mount, setting it to your site’s latitude, and aiming the polar axis as close as you can to due and true north. You don’t need precise polar alignment to gain the benefits of a tracking mount – it keeps the Sun centered – for the few minutes of totality.
Telephotos and Telescopes – Shoot Full Moon Closeups
Shoot the Full Moon around July 8 or August 7. If you intend to use Auto Exposure during totality, check how well it works on the Full Moon. It’s the same brightness as the inner corona of the Sun, though the Moon occupies a larger portion of the frame and covers more metering sensor points. This is another chance to check your focusing skill.
Telescopes and Telescopes – Shoot Crescent Moon Closeups
Shoot the waxing crescent moon in the evening sky during the last week of June and again in the last week of July. Again, test Auto Exposure with your camera in still or movie mode (if you intend to shoot video) to see how well the camera behaves on a subject with a large range in brightness. Or step through a range of exposures manually, from short for the bright sunlit crescent, to long for the dark portion of the Moon lit by Earthshine. It’s important to run through your range of settings quickly, just as you would during the two minutes of totality. But not too quickly, as you might introduce vibration. So …
In the resulting images, check for blurring from vibration (from you handling the camera), from wind, and from the sky’s east-to-west motion moving the Moon across the frame, during typical exposures of 1 second or less.
By practicing, you’ll be much better prepared for the surprises that eclipse day inevitably bring. Always have a less ambitious “Plan B” for shooting the eclipse simply and quickly should a last-minute move be needed.
However, may I recommend …
For much more detailed advice on shooting options and techniques, and for step-by-step tutorials on processing eclipse images, see my 295-page eBook on the subject, available as an iBook for Apple devices and as a PDF for all computers and tablets.
I present my Top 10 Tips for photographing the August 21 total eclipse of the Sun.
If the August total eclipse will be your first, then you could heed the advice of many and simply follow “Tip #0:” Just don’t photograph it! Look up and around to take in the spectacle. Even then, you will not see it all.
However, you might see less if you are operating a camera.
But I know you want pictures! To help you be successful, here are my tips for taking great photos without sacrificing seeing the eclipse.
TIP #1: Keep It Simple
During the brief minutes of totality, the easiest way to record the scene is to simply hold your phone camera up to the sky and shoot. Zoom in if you wish, but a wide shot may capture more of the twilight effects and sky colors, which are as much a part of the experience as seeing the Sun’s gossamer corona around the dark disk of the Moon.
Better yet, use an adapter to clamp your phone to a tripod. Frame the scene as best you can (you might not be able to include both the ground and Sun) and shoot a time-lapse, or better yet, a video.
Start it 2 or 3 minutes before totality (if you can remember in the excitement!) and let the camera’s auto exposure take care of the rest. It’ll work fine.
That way you’ll also record the audio of your excited voices. The audio may serve as a better souvenir than the photos. Lots of people will have photos, but nobody else will record your reactions!
Just make sure your phone has enough free storage space to save several minutes of HD video or, if your camera has that feature, 4K video.
TIP #2: Shoot Wide With a DSLR
For better image quality, step up to this hands-off technique.
Use a tripod-mounted camera that accepts interchangeable lenses (a digital single lens reflex or a mirrorless camera) and use a lens wide enough to take in the ground below and Sun above.
Depending on where you are and the sensor size in your camera, that’ll likely mean a 10mm to 24mm lens.
By going wide you won’t record details in the corona of the Sun or its fiery red prominences. But you can record the changing sky colors and perhaps the dark shadow of the Moon sweeping from right to left (west to east) across the sky. You can also include you and your eclipse group silhouetted in the foreground. Remember, no one else will record you at the eclipse.
TIP #3: Shoot on Auto Exposure
For wide shots, there’s no need to attend to the camera during the eclipse. Set the camera on Auto Exposure – Aperture Priority (Av), the camera ISO between 100 to 400, and your lens aperture to f/2.8 (fast) to f/5.6 (slow).
Use a higher ISO if you are using a slower lens such as a kit zoom. But shoot at ISO 100 and at f/2.8 if you have a wide lens that fast.
In Av mode the camera will decide what shutter speed to use as the lighting changes. I’ve used this technique at many eclipses and it works great.
TIP #4: Let the Camera Do the Shooting
To make this wide-angle technique truly hands-off use an intervalometer (either built into your camera or a separate hardware unit) to fire the shutter automatically.
Once again, start the sequence going 3 to 5 minutes before totality, with the intervalometer set to fire the shutter once every second. Don’t shoot at longer intervals, or you’ll miss too much. Shutter speeds won’t likely exceed one second.
Again, be sure your camera’s memory card has enough free space for several hundred images. And don’t worry about a solar filter on your lens. It’ll be fine for the several minutes you’ll have it aimed up.
Out of the many images you’ll get, pick the best ones, or turn the entire set into a time-lapse movie.
TIP #5: Shoot on Manual Focus
Use Auto Exposure and an intervalometer. But … don’t use Auto Focus.
Switch your lens to Manual Focus (MF) and focus on a distant scene element using Live View.
Or use Auto Focus to first focus on something in the distance, then switch to Manual and don’t touch focus after that. If you leave your lens on Auto Focus the shutter might not fire if the camera decides it can’t focus on the blank sky.
TIP #6: Shoot Raw
For demanding subjects like a solar eclipse always shoot your images in the Raw file format. Look in your camera’s menus under Image Quality.
Shoot JPGs, too, if you like, but only Raw files record the widest range of colors and brightness levels the camera sensor is capable of detecting.
Later in processing you can extract amazing details from Raw files, both in the dark shadows of the foreground, and in the bright highlights of the distant twilight glows and corona around the Sun. Software to do so came with your camera. Put it to use.
TIP #7: OK, Use a Telephoto Lens! But …
If you really want to shoot close-ups, great! But don’t go crazy with focal length. Yes, using a mere 135mm or 200mm lens will yield a rather small image of the eclipsed Sun. But you don’t need a monster 600mm lens or a telescope, which typically have focal lengths starting at 600mm. With long focal lengths come headaches like:
•Keeping the Sun centered. The Earth is turning! During the eclipse that motion will carry the Sun (and Moon) its own diameter across your frame from east to west during the roughly two minutes of totality. While a motorized tracking mount can compensate for this motion, they take more work to set up properly, and must be powered. And, if you are flying to the eclipse, they will be much more challenging to pack. I’m trying to keep things simple!
•Blurring from vibration. This can be an issue with any lens, but the longer your lens, the more your chances of getting fuzzy images because of camera shake, especially if you are touching the camera to alter settings.
An ideal focal length is 300mm to 500mm. But …
When using any telephoto lens, always use a sturdy tripod with a head that is easy to adjust for precise aiming, and that can aim up high without any mechanical issues. The Sun will be halfway, or more, up the sky, not a position some tripod heads can reach.
TIP #8: Use Auto Exposure, or … Shoot a Movie
During totality with your telephoto, you could manually step through a rehearsed set of exposures, from very short shutter speeds (as short as 1/4000 second) for the diamond rings at either end of totality, to as long as one or two seconds at mid-totality for the greatest extent of the corona’s outermost streamers.
But that takes a lot of time and attention away from looking. Yes, there are software programs for automating a camera, or techniques for auto bracketing. But if this is your first eclipse an easier option is to simply use Auto Exposure/Aperture Priority and let the camera set the shutter speed. Again, you could use an intervalometer to fire the shutter so you can just watch.
Don’t use high ISO speeds. A low ISO of 100 to 400 is all you need and will produce less noise. The eclipsed Sun is still bright. You don’t need ISO 800 to 3200.
Even on Auto Exposure, you’ll get good shots, just not of the whole range of phenomena an eclipsed Sun displays.
Or, once again and better yet – put your camera into video mode and shoot an HD or 4K movie. Auto Exposure will work just fine, allowing you to start the camera then forget it.
Place the Sun a solar diameter or two to the left of the frame and let the sky’s motion drift it across the frame for added effect. Start the sequence running a minute or two before totality with your solar filter on. Then just let the camera run … except …
TIP #9: Remember to Remove the Filter!
You will need a safe solar filter over your lens or telescope to shoot the partial phases of the eclipse, and to frame and focus the Sun. This cannot be a photo neutral density or polarizing filter. It must be a filter designed for observing and shooting the Sun, made of metal-coated glass or Mylar plastic. Anything else is not safe and likely far too bright.
But you do NOT need the filter for totality.
Remove it … when?
The answer: a minute or so before totality if you want to capture the first diamond ring just before totality officially starts. Set a timer to remind you, as visually it is very difficult to judge the right moment with your unaided eye. The eclipse will start sooner than you expect.
If you have your camera on Auto Exposure, it will compensate just fine for the change in brightness, from the filtered to the unfiltered view.
But don’t leave your unfiltered camera aimed at the Sun. Replace the filter no more than a minute or so after totality and the second diamond ring ends.
TIP #10: Focus!
Everyone worries about getting the “best exposure.” Don’t! You’ll get great looking telephoto eclipse close-ups with any of a wide range of exposures.
What ruins most eclipse shots, other than filter forgetfulness, is fuzzy images, from either shaky tripods or poor focus.
Focus manually using Live View on the filtered partially eclipsed Sun. Zoom up on the edge of the Sun or sharp tip of the crescent. Re-focus a few minutes before totality, as the changing temperature can shift the focus of long lenses and telescopes.
But you needn’t worry about re-focusing after you remove the filter. The focus will not change with the filter off.
TIP #1 AGAIN: Keep It Simple!
I’ll remind you to keep things simple for a reason other than giving you time to enjoy the view, and that’s mobility.
You might have to move at the last minute to escape clouds. Complex photo gear can be just too much to take down and set up, often with minutes to spare, as many an eclipse chaser can attest is often necessary. Keep your gear light, easy to use, and mobile. Committing to an overly ambitious and inflexible photo plan and rig could be your undoing.
By following both my “Ten Tips” advice blogs you should be able to get great eclipse images to wow your friends and fans, all without missing the experience of actually seeing … and feeling … the eclipse.
However … may I recommend …
For much more detailed advice on shooting options and techniques, and for step-by-step tutorials on processing eclipse images, see my 295-page eBook on the subject, available as an iBook for Apple devices and as a PDF for all computers and tablets.
The most spectacular sight the universe has to offer is coming to a sky near you this summer.
On August 21 the Moon will eclipse the Sun, totally!, along a path that crosses the continental USA from coast to coast. All the details of where to go are at the excellent website GreatAmericanEclipse.com.
If this will be your first total solar eclipse, you might want to just watch it. But many will want to photograph or video it. It can be easy to do, or it can be very complex, for those who are after ambitious composites and time-lapses.
To tell you how to shoot the eclipse, with all types of cameras, from cell phones to DSLRs, with all types of techniques, from simple to advanced, I’ve prepared a comprehensive ebook, How to Photograph the Solar Eclipse.
It is 295 pages of sage advice, gathered over 38 years of shooting 15 total solar eclipses around the world.
The book is filled with illustrations designed specifically for the 2017 eclipse – where the Sun will be, how to frame the scene, what will be in the sky, how the shadow will move, where the diamond rings will be, what lenses to use, etc.
Here are a few sample pages:
I cover shooting with everything from wide-angle cameras for the entire scene, to close-ups with long telephotos and telescopes, both on tripods and on tracking mounts.
I cover all the details on exposures and camera settings, and on focusing and ensuring the sharpest images. Most bad eclipse pix are ruined not by poor exposure but poor focus and blurry images – the Sun is moving!
A big chapter covers processing of eclipse images, again, from simple images to complex stacks and composites.
For example, I show how to produce a shot like this, from 2012, combining a short diamond ring image with a long-exposure image of the corona.
A final chapter covers “what can go wrong!” and how to avoid the common mistakes.
The ebook is available on the Apple iBooks Store for Mac and iOS devices. This version has the best interactivity (zoomable images), higher quality images (less compression), and easiest content navigation.
However, for non-Apple people and devices, the ebook can also be purchased directly from my website as a downloadable PDF, which has embedded hyperlinks to external sites.
I think you’ll find the ebook to be the most comprehensive guide to shooting solar eclipses you’ll find. It is up to date (as of last week!) and covers all the techniques for the digital age.
Many thanks, and clear skies on August 21, wherever you may be in the shadow of the Moon!
I’m pleased to announce that after a year in production, our video tutorial series, Nightscapes and Time-Lapses: From Field to Photoshop, is now available.
It’s been quite a project! Over the last few years I’ve presented annual astrophoto workshops in conjunction with our local telescope dealer All-Star Telescope to great success.
However, we always had requests for the workshops on video. Attempts to video the actual workshops never produced satisfactory results. So we spent a year shooting in the field and in the studio to produce a “purpose-built” series of programs.
They are available now as a set of three programs, totalling 4 hours of instruction, for purchase and download at Vimeo at
For those wanting “hard copies” we will also be selling the programs on mailed USB sticks. See All-Star Telescope for info and prices. The downloaded version can also be ordered from there.
This series deals with the basics of capturing, then processing nightscape still images and time-lapse movies of the night sky and landscapes lit by moonlight and starlight.
Here’s the content outline:
Program 1 – Choosing Equipment (1 Hour)
• Tips for Getting Started • Essential Gear • Choosing A Camera • Photo 101 – Exposure Triangle • Setting Exposure • Expose to the Right • Setting a Camera – File Types • Photo 101 – Noise Sources • Setting a Camera – Noise Reduction • Setting a Camera – Focusing • Setting a Camera – Other Menus • Choosing Lenses • Choosing an IntervalometerSummary and Tips
Program 2 – Shooting in the Field (1 hour)
• Climbing the Learning Curve • Twilights • Astronomy 101 – Conjunctions • Shooting Conjunctions • Moonrises • Shooting Auroras • Astronomy 101 – Auroras • Photo 101 – Composing • Moonlit Nightscapes • Astronomy 101 – Where is the Moon? • Choosing a Location • Shooting the Milky Way • Astronomy 101 – Where is the Milky Way? • Astronomy 101 – Daily Sky Motion • Tracking the Sky • Shooting Star Trails • Shooting Time-Lapses • Calculating Time-Lapses • A Pre-Flight Checklist • Summary and Tips
Program 3 – Processing Nightscapes and Time-Lapses (2 hours)
• Workflows • Using Adobe Bridge – Importing and Selecting • Photo 101 – File Formats • Using Adobe Lightroom – Importing and Selecting • Adobe Camera Raw – Essential Settings • Adobe Camera Raw – Developing Raw Images • Adobe Lightroom – Develop Module • Adobe Photoshop – Introduction • Photoshop – Setup • Photoshop – Smart Filters • Photoshop – Adjustment Layers • Photoshop – Masking • Photoshop – Processing Star Trails & Time-Lapses • Stacking Star Trails • Assembling Time-Lapse Movies • Archiving • Summary & Finale
If this first introductory series is successful we may produce follow-up programs on more advanced techniques.
On Sunday, September 27 the Moon undergoes a total eclipse, the last we’ll see until January 2018.
This is a sky event you don’t want to miss. Whether you photograph it or just enjoy the view, it will be a night to remember, as the Full Moon turns deep red during a total eclipse.
Note — For this article I’m giving times and sky directions for North America. For Europe the eclipse occurs early in the morning of September 28, as the Moon sets into the west. But for here in North America the timing could not be better. Totality occurs in the evening of Sunday, September 27 as the Moon rises into the east.
A total lunar eclipse occurs when the Moon — and it can only be Full — passes through the shadow cast into space by Earth. The Sun, Earth and Moon are in near-perfect alignment.
All total eclipses of the Moon consist of 3 main parts:
• The initial partial eclipse occurs as the Moon slowly enters the dark central portion of our planet’s shadow, the umbra. This lasts about an hour.
• Totality begins as the entire disk of the Moon is within the umbra. For this eclipse, totality lasts a generous 72 minutes.
• Totality ends as the Moon emerges from the umbra to begin the final partial eclipse lasting another hour.
WHERE TO SEE IT
All of North America, indeed most of the western hemisphere, can see this eclipse. In North America, the farther east you live on the continent the later in your evening the eclipse occurs and the higher the Moon appears in the southeast.
For example, in the Eastern time zone, totality begins at 10:11 p.m. EDT and ends at 11:23 p.m. EDT, with mid-totality is at 10:47 p.m. EDT with the Moon about 35 degrees up, placing it high in the southeast sky for southern Ontario, for example.
For me in the Mountain time zone, the total eclipse begins at 8:11 p.m. MDT and ends at 9:23 p.m. MDT, with mid-totality is at 8:47 p.m. MDT, with the Moon just 13 degrees up in the east from here in southern Alberta. From my time zone, and from most location in the Rocky Mountain regions, the Moon rises with the initial partial phases in progress.
For locations on the west coast viewers miss most of the partial eclipse phase before totality. Instead, the Moon rises as totality begins, making for a more challenging observation. Viewers on the coast will need clear skies and a low horizon to the east, but the reward could be a beautiful sight and images of a red Moon rising.
This eclipse of the Moon is the last in a series of four total lunar eclipses that occurred at six-month intervals over the last two years. We won’t enjoy another such “tetrad” of total lunar eclipses until 2032-33.
But this eclipse is unique in that it also coincides with the annual Harvest Moon, the Full Moon closest to the autumnal equinox. Harvest Moons are known for their orange tint as they rise into what is sometimes a dusty autumn evening.
But what is making internet headlines is that this Full Moon is also the year’s “supermoon,” the Full Moon of 2015 that comes closest to Earth. In recent years these “perigee” Full Moons have been dubbed “supermoons.”
Call it what you will, it does make this Full Moon a little larger than usual, though the difference is virtually impossible to detect by eye. And it makes little difference to the circumstances or appearance of the eclipse itself.
HOW TO SEE IT
Just look up! You can enjoy the eclipse with the unaided eye, and even from within city limits.
Unlike eclipses of the Sun, the eclipsed Moon is perfectly safe to look at with whatever you wish to use to enhance the view. The best views are with binoculars or a telescope at low power.
Look for subtle variations in the red colouring across the disk of the Moon, and even tints of green or blue along the dark edge of the Earth’s advancing or retreating shadow during the partial phases.
If you can, travel to a dark site to enjoy the view of the stars and Milky Way brightening into view as the Full Moon reddens and the night turns dark.
HOW TO SHOOT IT
1. On A Tripod
The easiest method is to use a camera on a tripod, with a remote release to fire the shutter and prevent vibration from blurring the image. What lens you use will depend on how you wish to frame the scene and how high the Moon is in your sky.
From eastern North America you’ll need a wide-angle lens (14mm to 24mm) to frame the eclipsed Moon and the ground below. The Moon will appear as a small red dot.
While you can shoot the Moon with longer focal lengths it takes quite a long lens (>300mm) to really make it worthwhile shooting just the Moon itself isolated in empty sky. Better to include a landscape to put the Moon in context, even if the Moon is small.
From western North America the lower altitude of the Moon allows it to be framed above a scenic landscape with a longer 35mm to 50mm lens, yielding a larger lunar disk.
From the west coast you could use a telephoto lens (135mm to 200mm) to frame the horizon and the eclipsed Moon as it rises for a dramatic photo.
Use Live View (and zoom in at 10x magnification) to manually focus on the horizon, distant lights, or bright stars. The Moon itself my be tough to focus on.
Exposures will depend on how bright your sky is. Use ISO 400 to 800 and try metering the scene as a starting point if your sky is still lit by twilight. Use wide lens apertures (f/4 to f/2) if you can, to keep exposures times as a short as possible.
The apparent motion of the Moon as the sky turns from east to west will blur the image of the Moon in exposures lasting more than a few seconds, especially ones taken with telephoto lenses.
The maximum exposure you can use before trailing sets in is roughly 500 / lens focal length.
2. On a Tracker or Equatorial Mount
If you can track the sky using a motorized tracker or telescope mount, you can take exposures up to a minute or more, to record the red Moon amid a starry sky.
For this type of shot, you’ll need to be at a dark site away from urban light pollution. But during totality the sky will be dark enough that the Milky Way will appear overhead. Use a wide-angle lens to capture the red Moon to the east of the summer Milky Way.
3. Through a Telescope
The most dramatic closeups of the eclipsed red Moon require attaching your camera body (with its lens removed) to a telescope. The telescope becomes the lens, providing a focal length of 600mm or more, far longer than any telephoto lens most of us own.
You’ll need the appropriate “prime focus” camera adapter and, to be blunt, if you don’t have one now, and have never shot the Moon though your telescope then plan on shooting with another method.
But even if you have experience shooting the Moon through your telescope, capturing sharp images of the dim red Moon demand special attention.
The telescope must be on a motorized mount tracking the sky, preferably at the “lunar,” not sidereal, drive rate. Focus on the Moon during the partial phases when it is easier to focus on the bright edge of the Moon.
Exposures during totality typically need to be 5 to 30 seconds at ISO 800 to 3200, depending on the focal ratio of your telescope. Take lots of exposures at various shutter speeds. You have over an hour to get it right!
I’d suggest attempting time-lapses only if you have lots of experience with lunar eclipses.
Exposures can vary tremendously over the partial phases and then into totality. Any time-lapse taken through a telescope, or even with a wide-angle lens, will require a lot of manual attention to ensure each frame is well-exposed as the sky and Moon darken.
However, even if you do not get a complete set of frames suitable for a smooth, continuous time-lapse, selected frames taken every 5 to 10 minutes may work well in creating a multiple-exposure composite (as above), by layering exposures later in Photoshop.
Whatever method – or methods — you use, don’t get so wrapped up in fussing with cameras you forget to simply enjoy the eclipse for the beautiful sight it is.
This is the last total eclipse of the Moon anyone on Earth will see until January 31, 2018. So enjoy the view of the deep red Moon in the autumn sky.
Here are my top tips for shooting terrific still-image nightscapes … and time-lapse movies of the night sky.
1. Go for pixel size, not pixel count
When choosing a camera for night sky scenes, the most important characteristic is not number of megapixels. Just the opposite.
The best cameras are usually models with more modest megapixel counts. Each of their individual pixels is larger and so collects more photons in a given exposure time, yielding higher a signal-to-noise ratio – or lower noise, critical for night shooting.
Cameras with pixels (the “pixel pitch”) 6 to 8 microns across are best. Many high-megapixel cameras have tiny 4-micron pixels.
Large-pixel cameras are often the full-frame models, such as the Canon 5D MkIII and 6D, the Nikon D610, D750, and Df, and the Sony a7s and a7S II.
Many “cropped-frame” cameras are now 18- to 24-megapixel models with smaller, noise-prone pixels. They can certainly be used, but will require more care in exposing well at lower ISOs, and in processing to smooth out noise without blurring detail.
2. Learn to fly on manual
While DSLRs and Compact System Cameras have amazing automatic functions we use none of them at night.
Instead, we use the camera on Manual or Bulb, dialling in shutter speed, aperture and ISO speed manually. We also have to focus manually, using Live View mode to focus on a bright star or distant light.
Learn the tradeoffs involved: Increasing ISO sensitivity of the sensor keeps exposure times down but increases noise. Opening up the lens aperture to f/2 or f/1.4 also keeps exposures short but introduces image-blurring aberrations, especially at the frame corners.
To prevent stars from trailing due to the sky’s motion adhere to the “500 Rule:” the maximum exposure time is roughly 500 divided by the focal length of your lens.
3. Expose to the right
At night, always give the sensor plenty of signal.
Use whatever combination of shutter speed, aperture and ISO will provide a well-exposed image. The image “histogram,” the graph of number of pixels at each brightness level shown above, should never be slammed to the left.
It should be a well-distributed “mountain range” of pixels, extending well to the right. If the 500 Rule restricts your shutter speed, and your desire for sharp images across the frame demands you shoot at f/2.8 or even slower, then don’t be afraid to bump up the ISO speed to whatever it takes to produce a good histogram and a well-exposed image.
Noise will look far worse if you underexpose, then try to boost the image brightness later in processing. Expose to the right!
4. Shoot Raw!
Shoot Raw. Period.
When comparing Raw and compressed JPG versions of the same image, you can be fooled into thinking the JPGs look better (i.e. smoother) because of the noise reduction the camera has applied to the JPG that is beyond your control. However, that smoothing has also wiped out fine detail, like stars.
By shooting Raw you get to control whatever level of noise reduction and sharpening the image needs later in processing.
JPGs are also 8-bit images with a limited tonal range – or palette – in which to record the subtle gradations of brightness and colour present in our images.
Imported Raw files are 16-bit, with a much wider tonal scale and colour palette. That’s critical for all astrophotos when, even with a well-exposed image, many tonal values are down in the dark end of the range. Processing Raw images makes it possible to extract detail in the shadows and highlights.
Even when shooting a time-lapse sequence, shoot Raw.
5. Take dark frames (sometimes!)
LENR reduces noise.
It’s a topic of some debate, but in my experience it is always better to turn on the camera’s Long Exposure Noise Reduction (LENR) function when shooting individual nightscape images. Doing so forces the camera to take a “dark frame,” an exposure of equal length but with the shutter closed.
It records just the noise, which the camera then subtracts from the image. Yes, it takes twice as long to acquire an image, but the image is cleaner, with fewer noisy pixels.
This is especially true when shooting on hot summer nights (the warmer the sensor the higher the noise). That said, you cannot use LENR when shooting frames for star trail composites or time-lapse movies.
For those, the interval between images should be no more than 1 to 5 seconds. Using LENR would introduce unsightly gaps in the trails or jumps in the star motion in time-lapses.
As an alternative, it is possible to take separate dark frames at the end of the night by simply covering the lens and taking exposures of the same duration and at the same ISO as your “light frames.”
Some stacking software, such as StarStax and the Advanced Stacker Actions have places to put these dark frames, to subtract them from the stack later in processing.
6. Use fast lenses
A fast lens is your best accessory.
While the “kit zoom” lenses that come with many DSLRs are great for shooting bright twilight or Full Moon scenes, they will prove too slow for dark starlit scenes with the Milky Way.
In addition to exposing to the right and shooting Raw, the secret to great nightscapes is to shoot with fast lenses, usually “prime” lenses with fixed focal lengths. They are usually faster and have better image quality than zooms.
Your most-used lens for nightscape and time-lapse shooting is likely to be a 14mm to 24mm f/2 to f/2.8 lens.
Fortunately, because we don’t need (and indeed can’t use) autofocus we can live happily with low-cost manual lenses, such as the models made in Korea and sold under brands such as Rokinon, Samyang and Bower. They work very well.
7. Get to know the Moon & Milky Way
For many nightscape and time-lapse shoots, the Moon is your light source for illuminating the landscape.
When the Moon is absent, the Milky Way is often your main sky subject.
Knowing where the Moon will be in the sky at its various phases, and when it will rise (in its waning phases after Full Moon) or set (in its waxing phases before Full) helps you a plan a shoot, so you’ll know whether a landscape will be well lit.
Astronomy apps for desktop computers and mobile devices are essential planning aids. A good one specifically for photographers is The Photographer’s Ephemeris.
Knowing in what season and time of night the Milky Way will be visible is essential if you want to capture it. Don’t try for Milky Way shots in spring – it isn’t up!
8. Keep it simple to start
Don’t be seduced by the fancy gear.
Time-lapse imaging has blossomed into a field replete with incredible gear for moving a camera incrementally during a shoot, and for automating a shoot as day turns to night.
I explain how to use all the fancy gear in my ebook, linked to below, however … Great time-lapses, and certainly still-frame nightscapes, can be taken with no more than a DSLR camera with a good fast lens and mounted on a sturdy tripod. Invest in the lens and don’t scrimp on the tripod.
Another essential for shooting multi-frame star trails and time-lapses is a hardware intervalometer ($50 to $150).
9. Learn the intricacies of intervals
For time-lapses, an intervalometer is essential.
Mastering exposure and focus in still images is essential for great time-lapse movies because they are simply made of hundreds of well-exposed still frames.
But move to time-lapses and you have additional factors to consider: how many frames to shoot and how often to shoot them. A good rule of thumb is to shoot 200 to 300 frames per sequence, shot with an interval of no more than 1 to 5 seconds between exposures, at least for starry night sequences.
However, most intervalometers (the Canon TC-80N3 is an exception) define their “Interval” setting to mean the time from when the shutter opens to when it opens again. In that case, you set the Interval to be a value 1 to 5 seconds longer than the exposure time you are using. That’s also true of the intervalometer function Nikon builds into their internal camera firmware.
10. Go to beautiful places
While the gear can be simple, great shots demand an investment in time.
By all means practice at home and at nearby sites that are quick to get to. Try out gear and techniques at Full Moon when exposures are short (the Full Moon is bright!) and you can see what you are doing.
But beautiful images of landscapes lit by moonlight or starlight require you to travel to beautiful locations.
When you are on site, take the time to frame the scene well, just as you would during the day. Darkness is no excuse for poor composition!
While shooting nightscapes and time-lapses can be done with a minimal investment in hardware and software, it does require an investment in time – time to travel and spend nights shooting at wonderful places under the stars.
Enjoy the night!
I cover all these topics, and much more, in detail in my ebook How to Photograph & Process Nightscapes and Time-Lapses. Click the link below to learn more.
I’ve been an avowed Canon DSLR user for a decade. I may be ready to switch!
[NOTE:This review dates from 2015. Tests done today with current models would certainly differ. Canon’s EOS R mirrorless series, for example, offer much better ISO Invariancy performance but lack the “dark frame buffer” advantage of Canon DSLRs. And indeed, I have used the Nikon D750 a lot since 2015. But I did not give up my Canons!]
Here, in a technical blog, I present my tests of two leading contenders for the best DSLR camera for nightscape and astronomical photography: the Canon 6D vs. the Nikon D750. Which is better?
To answer, I subjected both to side-by-side outdoor tests, using exposures you’ll actually use in the field for typical nightscapes and for deep-sky images.
Both cameras are stock, off-the-shelf models. They have not had their filters modified for astronomy use. Both are 20- to 24-megapixel, full-frame cameras, roughly competitive in price ($1,900 to $2,300).
For images shot through lenses, I used the Canon L-Series 24mm on the Canon 6D, and the Sigma 24mm Art lens on the Nikon D750.
The bottom line:Both are great cameras, with the Nikon D750 having the edge for nightscape work, and the Canon 6D the edge for deep-sky exposures.
The 24.3-megapixel Nikon D750 has 5.9-micron pixels, while the 20.2-megapixel Canon 6D has slightly larger 6.5-micron pixels which, in theory, should lead to lower noise for the Canon. How do they compare in practice?
I shot a moonlit nightscape scene (above) at five ISO settings, from 800 to 12800, at increasingly shorter exposures to yield identically exposed frames. I processed each frame as shown above, with boosts to shadows, clarity, and contrast typical for nightscapes. However, I applied no noise reduction (either luminance or color) in processing. Nor did I take and apply dark frames.
The blowups of a small section of the frame (outlined in the box in the upper right of the Photoshop screen) show very similar levels of luminance noise. The Canon shows slightly more color noise, in particular more magenta pixels in the shadows at high ISOs. Its larger pixels didn’t provide the expected noise benefit.
TEST #2 — Resolution
Much has been written about the merits of Canon vs. Nikon re: the most rigorous of tests, resolving stars down at the pixel level.
I shot the images below of the Andromeda Galaxy the same night through a 92mm aperture apo refractor. They have had minimal but equal levels of processing applied. At this level of inspection the cameras look identical.
But what if we zoom in?
For many years Nikon DSLRs had a reputation for not being a suitable for stellar photography because of a built-in noise smoothing that affected even Raw files, eliminating tiny stars along with noise. Raw files weren’t raw. Owners worked around this by turning on Long Exposure Noise Reduction, then when LENR kicked in after an exposure, they would manually turn off the camera power.
This so-called “Mode 3” operation yielded a raw frame without the noise smoothing applied. Clearly, this clumsy workaround made it impossible to automate the acquisition of raw image sequences with Nikons.
Are Nikons still handicapped? In examining deep-sky images at the pixel-peeping level (below), I saw absolutely no difference in resolution or the ability to record tiny and faint stars. With its 4-megapixel advantage the Nikon should resolve finer details and smaller stars, but in practice I saw little difference.
On the other hand I saw no evidence for Nikon’s “star eater” reputation. I think it is time to lay this bugbear of Nikons to rest. The Nikon D750 proved to be just as sharp as the Canon 6D.
Note that in the closeups above, the red area marks a highlight (the galaxy core) that is overexposed and clipped. Nikon DSLRs also have a reputation for having sensors with a larger dynamic range than Canon, allowing better recording of highlights before clipping sets in.
However, in practice I saw very little difference in dynamic range between the two cameras. Both clipped at the same points and to the same degree.
TEST #3 — Mirror Box Shadowing
An issue little known outside of astrophotography is that a DSLR’s deeply-inset sensor can be shadowed by the upraised mirror and sides of the mirror box. Less light falls on the edges of the sensor.
The vignetting effect is noticeable only when we boost the contrast to the high degree demanded by deep-sky images, and when shooting through fast telescope systems.
Here I show the vignetting of the Canon and Nikon when shooting through my 92mm refractor at f/4.5.
The circular corner vignetting visible in the images below is from the field flattener/reducer I employed on the telescope. It can be compensated for by using Lens Correction in Adobe Camera Raw, or eliminated by taking flat fields.
The dark edge at the bottom of the frame is from shadowing by the upraised mirror. It can be eliminated only by taking flat fields, or reduced by using masked brightness adjustments in processing.
Both cameras showed similar levels of vignetting, with the Canon perhaps having the slight edge.
TEST #4 — ISO Invariancy
So far the Nikon D750 and Canon 6D are coming up fairly equal in performance. But not here. This is where the Nikon outperforms the Canon by quite a wide margin.
Sony sensors (used in Sony cameras and also used by Nikon) have a reputation for being “ISO Invariant.”
What does that mean?
In the examples above, the correct exposure for the starlit scene was 15 seconds at f/1.4 at ISO 6400. See how the two cameras rendered the scene? Very similar, albeit with the Canon showing more noise and discoloration in the dark frame corners.
What if we shoot at the same 15 seconds at f/1.4 … but at ISO 3200, 1600, 800, and 400? These are now 1-, 2-, 3-, and 4-stops underexposed, respectively.
Then we boost the Exposure setting of the underexposed Raw files later in processing, by 1, 2, 3 or 4 f-stops. What do we see?
With the Nikon (above) we see images that look nearly identical for noise to what we got with the properly exposed ISO 6400 original. It really didn’t matter what ISO speed the image was shot at – we can turn it into any ISO we want later with little penalty.
With the Canon (above) we get images with grossly worse noise in the shadows and with ugly magenta discoloration. Canons cannot be underexposed. You must use as high an ISO as needed for the correct exposure.
This “ISO Invariant” advantage of Nikon over Canon is especially noticeable in nightscapes scenes lit only by starlight, as above. The Canon turns ugly purple at -3EV underexposure, and loses all detail and contrast at -4EV underexposure.
For nightscape imaging this is an important consideration. We are limited in exposure time and aperture, and so are often working at the ragged edge of exposure. Dark areas of a scene are often underexposed and prone to noise. With the Nikon D750 these areas may still look noisy, but not much more so than they would be at that ISO speed.
With the Canon 6D, underexpose the shadows and you pay the price of increased noise and discoloration when you try to recover details in the shadows.
Apparently, the difference comes from where the manufacturer places the analog-to-digital circuitry: on the sensor (ISO invariant) or outboard on a separate circuit (ISO variant), and thus where in the signal path the amplification occurs when we boost ISO speed.
TEST #6 — Features
One could go on endlessly about features, but here I compare the two cameras on just a few key operating features very important to astrophotographers.
The Canon 6D has none, though newer Canons do. The Nikon D750, as do many Nikons, has a built-in intervalometer (shown above), even with a deflickering “Exposure Smoothing” option. However, exposure time is limited to the camera’s maximum of 30 seconds. Any longer requires an outboard intervalometer, as with the Canon.
If you use your camera with any motion control time-lapse unit, then it becomes the intervalometer, negating any capability built into the camera. But it’s nice to have.
Small Advantage: Nikon
REVISED JUNE 2020:
When taking time-lapse or star trail images with the Canon I can set an interval as short as 1 second between frames, for a minimum of gaps or jumps in the stars. With the Nikon, controlled internally by its built-in intervalometer, a 1-second interval is possible but only if you set the interval to 33 seconds for a 30-second shutter speed.
That’s true of Canon and Sony built-in intervalometers as well, because on all cameras setting the exposure to 30 seconds really gives you a 32-second exposure. A little known fact! So the interval between shutter firings has to be set to 33 seconds. It’s tricky.
Advantage: None to either
Tiltable LCD Screen:
The Canon 6D has none. The Nikon D750 has a very useful tilt-out screen as shown above. This is hugely convenient for all forms of astrophotography. Only cropped-frame Canons have tilt-out screens. This feature might add weight, but it’s worth it!
Big Advantage: Nikon
Dark Frame Buffer:
The Nikon has none. With Long Exposure Noise Reduction ON, the Canon 6D allows up to four exposures to be shot in quick succession before the dark frame kicks in and locks up the camera. (Put the camera into Raw+JPG.)
[JUNE 2020: With the Canon 6D MkII the buffer allows three frames to be taken in quick succession.]
This is very useful for deep-sky imaging, for acquiring a set of images for stacking that have each had a dark frame subtracted in-camera, with a minimum of “down-time” at the camera.
Big Advantage: Canon
Live View Screen Brightness:
As pointed out to me by colleague Christoph Malin, with the Nikon you cannot dim the screen when in Live View mode and with Exposure Simulation ON. So it can be too bright at night. With the Canon you can dim the Live View screen — the LCD Brightness control affects the screen both during Live View as well as during playback of images.
Small Advantage: Canon
Canon EOS cameras are well supported by advanced software, such as GBTimelapse (above) that controls only Canons, not Nikons, in complex time-lapse sequences, and Nebulosity, popular among deep-sky imagers for DSLR control.
Small Advantage: Canon
My take-away conclusions:
• Nikon DSLRs now are just as good for astrophotography as Canons, though that wasn’t always the case – early models did suffer from more noise and image artifacts than their Canon counterparts.
• Canon DSLRs, due to their sensor design, are more prone to exhibiting noise and image artifacts when images are greatly underexposed then boosted later in processing. Just don’t underexpose them – good advice for any camera.
It’s Perseid meteor shower time. Here are tips for seeing and shooting the meteors.
What are the Perseids?
They are an annual meteor shower, perhaps the most widely observed of the year, that peak every year about August 12. They are caused by Earth passing through a dust stream left by Comet Swift-Tuttle, last seen near Earth in 1992.
Each “shooting star” is really a bit of comet dust burning up in our atmosphere as it ploughs into us at 200,000 kilometres an hour. They don’t stand a chance of surviving – and none do.
All Perseid particles burn up. None reach Earth.
When are the Perseids?
The peak night of the Perseids this year is the night of Wednesday, August 12 into the early morning hours of August 13, with the peak hour occurring about midnight Mountain Daylight Time or 2 a.m. on the 13th for Eastern Daylight Time.
For North America, this is ideal timing for a good show this year. However, a good number of meteors will be visible the night before and night after peak night.
Even better, the Moon is near New and so won’t interfere with the viewing by lighting up the sky.
In all, except for the mid-week timing, conditions this year in 2015 couldn’t be better!
What do they look like?
Any meteor looks like a brief streak of light shooting across the sky. The brightest will outshine the brightest stars and are sure to evoke a “wow!” reaction.
However, the spectacular Perseids are the least frequent. From a dark site, expect to see about 40 to 80 meteors in an hour of patient and observant watching, but of those, only a handful – perhaps only 1 or 2 – will be “wow!” meteors.
Where do I look?
All the meteors will appear to radiate from a point in the constellation of Perseus in the northeastern sky in the early hours of the night, climbing to high overhead by dawn.
So you can face that direction if you wish, but Perseids can appear anywhere in the sky, with the longest meteor trails often opposite the radiant point, over in the southwest.
How do I look?
Simple – just lie back on a comfy lawn chair or patch of grass and look up!
But … you need to be at a dark location away from city lights to see the most meteors. You’ll see very little in a city or light-polluted suburbs.
Head to a site as far from city lights as you can, to wherever you’ll be safe and comfortable.
How do I take pictures?
To stand any chance of capturing these brief meteors you’ll need a good low-noise camera (a DSLR or Compact System Camera) with a fast (f/2.8 or faster) wide-angle lens (10mm to 24mm).
Sorry, keep your point-and-shoot camera and phone camera tucked away in your pocket – they won’t work.
Set up you camera on a tripod, open the lens to f/2.8 (wide open perhaps) and the ISO to 800 to 3200) and take a test exposure of 20 to 40 seconds. You want a well-exposed image but not over-exposed so the sky is washed out.
Set your exposure time accordingly – most cameras allow a maximum exposure of 30 seconds. Exposures longer than 30 seconds require a separate intervalometer to set the exposure, with the camera set on Bulb (B).
Take lots of pictures!
To up your chances of catching a meteor, you need to set the camera to shoot lots of frames in rapid succession.
Use an intervalometer to take shots one after the other with as little time between as possible – because that’s when a meteor will appear!
Barring an intervalometer, if you have standard switch remote control, set the camera on High Speed Continuous, and the shutter speed to 30 seconds, then lock the remote’s switch to ON to keep the camera firing. As soon as one exposure ends it’ll fire another.
What else do I need to know?
• Focus the lens carefully so the stars are sharp – the Live Focus mode helps for this. Focus on a bright star or distant light.
• Aim the camera to take in a wide swath of the sky but include a well-composed foreground for the most attractive shot.
• Aim northeast to capture meteors streaking away from the radiant. But you can aim the camera to any direction that lends itself to a good composition and still capture a meteor.
• To increase your chances, shoot with two or more cameras aimed to different areas of the sky. Meteors always appear where your camera isn’t aimed!
• Be patient! Despite shooting hundreds of frames only a handful will record a meteor, as only the brightest will show up.
Can I track the sky?
If you have a motorized equatorial mount or a dedicated sky tracking device (the iOptron Sky Tracker and Sky-Watcher Star Adventurer, each about $400, are popular), you can follow the stars while taking lots of shots. This avoids the stars trailing and allows you to use longer exposures.
The video above shows a Star Adventurer tracking the sky as it turns about its polar axis which is aimed up to a point near Polaris. Click the Enlarge and HD buttons to view the video properly.
Polar align the tracker, but then perhaps aim the camera to frame the summer Milky Way overhead. Take lots of 1- to 3-minute exposures, again at f/2.8 and ISO 800 to 1600. Some exposures will pick up meteors – with luck!
Tracking then stacking
Later, in processing, because the sky has remained fixed on the frame, it’s then possible to stack the images (using a “Lighten” blend mode on each image layer) so that the final composite frame contains more meteors, for an image with lots of meteors captured over an hour or more of shooting.
While it is possible to stack shots taken on a static tripod to produce such a meteor composite, doing so requires a lot of manual cutting, pasting and aligning of meteor images by hand. The result is a bit of a fake, though I’ve done it myself – the image at top is an example, though with only a trio of meteors.
50 embedded HD videos (no internet connection required) demonstrating time-lapse techniques.
60 multi-page tutorials with step-by-step instructions of how to use software: Adobe Bridge, Adobe Camera Raw, Photoshop, Lightroom, LRTimelapse, Advanced Stacker Actions, StarStaX, Panolapse, Sequence, GBTimelapse, and more.
Numerous Photo 101 sections explaining the basic concepts of photography and video production (f-stops, ISOs, file types, aspect ratios, frame rates, compression, etc.).
Numerous Astronomy 101 sections explaining the basics of how the sky works (how the sky moves, where the Moon can be found, when the Milky Way can be seen, when and where to see auroras).
Reviews of gear – I don’t just mention that specialized gear exists, I illustrate in detail how to use popular units such as the Time-Lapse+, Michron, and TriggerTrap intervalometers, and the All-View mount, Radian, Mindarin Astro, eMotimo, and Dynamic Perception motion-control units, with comments on what’s good – and not so good – to use.
You’ll learn —
• What are the best cameras and lenses to buy (cropped vs. full-frame, Canon vs. Nikon, manual vs. automatic lenses, zooms vs. primes).
• How to set your cameras and lenses for maximum detail and minimum noise (following the mantra of “exposing to the right” and using dark frames).
• How to shoot auroras, conjunctions, satellites, comets, and meteor showers.
• How to shoot nightscapes lit only by moonlit, and how to determine where the Moon will be to plan a shoot.
• How to shoot & stitch panoramas of the night sky and Milky Way, using Photoshop and PTGui software.
• How to shoot tracked long exposures of the Milky Way using camera trackers such as the iOptron Star Tracker and Sky-Watcher Star Adventurer.
• How to develop Raw files, the essential first step to great images and movies.
• How to process nightscape stills using techniques such as compositing multiple exposures, masking ground and sky, and using non-destructive adjustment layers and smart filters.
• How to shoot and stack star trail images made of hundreds of frames.
• How to assemble time-lapse movies from those same hundreds of frames.
• How to plan a time-lapse shoot and calculate the best balance of exposure time vs. frame count vs. length of shoot, and recommended apps to use.
• How to process hundreds of frames using Adobe Camera Raw, Bridge, Photoshop, and Lightroom.
• How to shoot and process advanced “Holy Grail” time-lapse transitions from day to night.
• How to shoot motion-control sequences using specialized dolly and pan/tilt devices.
• How to use time-lapse processing tools such as LRTimelapse, Panolapse, Sequence, and Advanced Stacker Actions.
• What can go wrong and how best to avoid problems in the field.
It’s a large, multi-media book available only for MacOS and iPads through the Apple iBookstore.
For technical and economic reasons, the book’s size and media content prevent it from being offered via other platforms such as Kindles and Android devices. It is not available as a static PDF or traditional print book. It’s subject makes use of an ebook’s ability to contain interactive and video content.
See http://tiny.cc/urdoqx for more about the book at iTunes. Available worldwide. It’s $24.95 in the U.S.