Lightning bolts and a rainbow at sunset in a thunderstorm retreating over the Alberta prairie, July 18, 2016. There is a faint outer bow visible at left. This is a stack of 35 consecutive video frames taken with HD (1920 x 1080) resolution at 30 frames per second with the Canon 6D, and extracted as an image sequence with Photoshop, then processed in Adobe Camera Raw, then stacked with Russell Brown’s Stack-A-Matic into a smart object with maximum stack mode, to accumulate the frames taken over about 1 second into one still frame. So I could have got this with a single 1-secind exposure with the lens stopped way down and a ND filter, but my timing would have had to have been very, very lucky!
Double Rainbow at Whirlpool Point, on Hwy 11 near Banff park boundary, in Alberta. 28mm lens.
Classic Double rainbow under near perfect lighting and geometry -- with Sun low in NW breaking through cloud and so rainbow arc is high, with anti-solar point near SE horizon. So rainow is near perfect semi-circle. Bright sunlight against dark background of receding storm made rainbow bright and outer secodnary bow more visible than usual and complete. Supernumerary arcs also visible on inside edge of primary bow. Colors enahanced only slightly. Taken on Fujichrome 100F 120-format slide film with Pentax 6x7camera with 35mm full frame fisheye lens, thus curvature of horizon. Taken in July 2003 from home off back porch.
