Today’s B&H Photo Video DealZone (one-day deal) is the Bower 8mm f/3.5 Fisheye for Canon for $159.95. This is the lowest price we’ve seen yet for this manual-focus lens. (This lens may be more commonly known as the Rokinon or Samyang 8mm — Bower is yet another one of their brand names.)
Please note this is NOT the “HD” version of the lens. Thus, the lens hood is not detachable, and you will get an obstructed field of view on a full-frame camera. We recommend this lens only for crop-bodies (although it’s possible to modify your lens to work with a full-frame camera.) Check out this flickr group for sample photos with this lens. Nikon and Sony mounts also available at this price.
HD version 2.0 with detachable hood has better glass in it, I have one.