Noctilucent clouds in the high atmosphere far above and behind foreground thunderstom clouds moving across the horizon. The red fringe at right is from NLCs catching the reddish light of the setting Sun from their position and altitude. This is a single 11-second exposure with the Canon 5D MkII at ISO 400 and 135mm lens at f/2.8. It is part of a time-lapse sequence.
Noctilucent clouds in the high atmosphere far above and behind foreground thunderstom clouds moving across the horizon. This is a single 7-second exposure with the Canon 5D MkII at ISO 400 and 135mm lens at f/2.8. It is part of a time-lapse sequence taken from southern Alberta, Canada.
Noctilucent clouds in the high atmosphere far above and behind foreground thunderstom clouds moving across the horizon. This is a single 30-second exposure with the Canon 5D MkII at ISO 100 and 135mm lens at f/2.8.
