The northern lights on June 28/29, 2013 as seen from the Wintering Hills WInd Farm near Drumheller, Alberta, on a night the aurora covered the sky. This is a single frame from a 300-frame time-lapse movie. It is a 14-second exposure at f/2 with the 24mm lens and Canon 5D MkII at ISO 400. The Moon is just rising as the display is reaching a peak in intensity.
The Amazing Sky 