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.
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 16-35mm Canon zoom lens at 24mm for 8 seconds at f/3.5 and ISO 400
Venus (below) and Jupiter in close conjunction low on dawn twilight, May 12, 2011. Mercury was also below the pair but did not show up against the bright sky. Taken with 135mm lens and Canon 7D at ISO 100. Metered exposure & autofocus on horizon employed.
