Canon EF 8-15mm f/4 L USM Fisheye Lens Review

Great review as always Bryan. Just one small correction..


"Essentially, this hood with cause physical vignetting at focal lengths wider than the full-frame fisheye setting..."

Thanks for the editing help, mmodica!

I assume that should be *will not *with? Or is that what mmodica

I've been using Sigma 8 f/3.5 circular fisheye with some success:


http://alexbraverman.smugmug.com/pho...20_e5KSM-O.jpg


You may have seen this one in Pop Photo January 2009.


Has anyone any experience with this lens? How does it compare to Canon 8-15, assuming I am primarily interested in the circular 8mm images? Would you advise the upgrade?