The stars of the Big Dipper trailing above Bow Falls on the Bow River in Banff, Alberta, under the light of the Full “supermoon” of August 10 2014.
This is a stack of one 30-second exposure at ISO 800 for the point-like trails and five 4-minute exposures at ISO 100 for the long trails, all with the 24mm lens at f/4 and Canon 5D MkII.
The Amazing Sky 