Rainbow Wheel Over Lake Charlevoix, Michigan
July 07, 2012
Photographer: Julie Christiansen
Summary Author: Julie Christiansen; Jim Foster
The photo above shows a beautiful double rainbow consisting of primary and secondary rainbows as well as an infrequently seen rainbow wheel. It was taken from Lake Charlevoix, Michigan in the early evening of May 28, 2012. A rainbow wheel can be observed near sunset or sunrise when anticrepuscular rays merge with a rainbow – the rays are the spokes of the wheel. Both rainbows and anticrepuscular rays have the antisolar point as their focus. If a rainbow is visible high in the sky, look closely to see if might contain curious “spokes.”
Photo details: Camera Maker: NIKON CORPORATION; Camera Model: NIKON D7000; Lens: Fisheye; Focal Length: 10.5mm (35mm equivalent: 15mm); Aperture: f/8.0; Exposure Time: 0.0040 s (1/250); ISO equiv: 110; Exposure Bias: none; Metering Mode: Matrix; White Balance: Auto; Light Source: Unknown; Flash Fired: No (Auto); Color Space: sRGB; Software: Adobe Photoshop Elements 7.0 Windows.