Afternoon Rainbows

Afternoon shower rainbow Strong afternoon rainbow

Scattered afternoon showers give the best chance of a good rainbow. It helps if the cloud base is fairly high and there is a clearing following the showers, most showers here come from the south and west.

The showers need to be far enough apart to leave large gaps for the sun to shine on the falling rain. When conditions are right the results can be impressive.

Fast moving shower rainbow

A fast moving shower left behind enough falling drops to catch the sunshine and give a nice clear rainbow. The sun altitude was 16 degrees.

Composite of 4 images.

Rainbow over the pub

I tried moving to get a different foreground but the left side of the bow had already faded out. The full arc was visible for less than two minutes.

Canon EOS 20D    21st January 2007
Wiltshire, England

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