Stars and Milky Way over Waterton Hotel, Waterton Lakes National Park, July 20, 2011. This is one frame of 470+ frames taken for a time-lapse movie over 4 hours. This is a single 30-second exposure at f/4 with the Sigma 8mm lens at Canon 5D MkII at ISO 1600. The Moon is about to rise at right, giving a sky glow to the horizon while some deep blue twilight remains.
Big Dipper over old farm house near home, July 15, 2011. Taken with Canon 7D and 10-22mm zoom lens at 10mm, for 18 seconds at f/5.6 and ISO 800. Lens was a little out of focus for this — this is one of 700+ frames taken for a time-lapse movie and composite star trails shot.
Noctilucent clouds low on northern horizon, amid midnight twilight of summer solstice, June 28, 2011. Big Dipper and Polaris in upper half of frame. Taken with Canon 7D and 10-22mm Canon zoom lens at 11mm for 20 seconds at f/4 and ISO 1000.