Reviews and Problems with Canon EF 8-15mm f/4L Fisheye USM
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Canon EF 8-15mm f4L Fisheye USM
18 July 2011
Summary: Crucially these capabilities fill a number of gaps in Canon's lens catalogue. Previously only one of the four configurations mentioned above was possible with a Canon branded lens, and it was decades old.
Pros: 180 degree diagonal fisheye for all Canon DSLRs., 180 degree circular fisheye for full-frame DSLRs., Tough build with weatherproofing., Optically sharp across the entire imaging circle.
Cons: Vulnerable-looking front element., Lens cap easily comes loose., Chromatic aberrations in areas of high contrast., Full circular fisheye only available to full-frame.