The Big Dipper over moonlit aspens in full fall colour, at Elbow Falls, Kananaskis, Alberta, in September 2015. Illumination is from a waxing gibbous Moon. This is a single 15-second exposure at f/2.5 with the 24mm lens and Nikon D750 at ISO 800.
The Big Dipper, with its handle pointing to Arcturus at left, on a moonlit autumn evening, over the Waterton River at the Maskinonge picnic area at Waterton Lakes National Park, Alberta. I shot this September 20, 2015, before clouds and eventually rain moved in. Illumination is from a First Quarter Moon. This is a single 20-second exposure at f/2.8 and ISO 1600 with the Nijon D750 and Sigma 24mm lens, untracked on a tripod. The night was very windy, thus the blurred grass and bushes.
The Big Dipper and Ursa Major over the badlands of Dinosaur Provincial Park, Alberta, on Sept 11, 2015 taken on a night of aurora shooting. The scene is lit by aurora and starlight. An arc of aurora is on the horizon while wispy bands of airglow are visible above the aurora. The sky is a single untracked exposure of 30 seconds at f/2 with the Sigma 24mm lens and Nikon D750 at ISO 3200, while the ground is a Mean Combine stack of 5 similar exposures to smooth noise.
