Double Rainbow Panorama Over Amersfoort, The Netherlands

June 02, 2012

Double rainb ow pano2

: Jurgen de Boer; Jurgen's Web site
Summary Author: Jurgen de Boer; Jim Foster

This double rainbow panorama was captured over Amersfoort, the Netherlands following a hail-producing afternoon thunderstorm. Clearly visible here are the primary and secondary rainbows, Alexander's dark band (the darkened area between the two bows) and supernumerary bows just beneath the top of the primary bow. Whereas refraction and reflection of light in raindrops explains how the primary and secondary bows are formed, the wave nature of light is needed to understand how light interacts with the tiny, nearly same-sized droplets that are responsible for the formation of supernumerary bows. Panorama taken on May 16, 2012.

Photo details: Camera Maker: Canon; Camera Model: Canon EOS 60D; Lens: EF28-70mm f/2.8L USM; Focal Length: 28mm; Aperture: f/8.0; Exposure Time: 0.0031 s (1/320); ISO equiv: 100; Exposure Bias: none; Metering Mode: Matrix; Exposure: program (Auto); White Balance: Auto; Flash Fired: No (enforced); Orientation: Normal; Color Space: sRGB; Software: Adobe Photoshop CS5 Windows.