Who among us is a fisheye fan? Why not a have a thread dedicated to fisheye photos?
I'd welcome a discussion of fisheye lenses, techniques, images, and postprocessing. . . I'm a new fisheye lens user and I'm finding it quite a challenge!
To start things off, here's an image
(K20D, Sigma 8mm/4.0 EX Fisheye; see
http://www.pbase.com/troyz/image/101014491/original)
an interesting list of fisheye lenses
- The Fish List -
and a plug for some postprocessing software
hugin - Panorama photo stitcher
I've never used hugin for stitching, but it seems to work quite well for de-fishing, projection, and perspective adjustment of single images

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