Nick Norton Posted April 5, 2010 Share Posted April 5, 2010 I am shopping for a fisheye to fit my 7D, and am confused on the claims of some lenses. Comparing a 7mm with an 8mm fisheye, they both claim to have a 180 degree diagonal angle of view. How can this be if the focal lengths are different? How can i determine which fisheye is widest? Link to comment Share on other sites More sharing options...
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