And, for a slightly different perspective, the Pentax 10-17mm fisheye: http://www.dpreview.com/news/0512/05120103pentax_fishizoom.asp
Shel "You meet the nicest people with a Pentax" > [Original Message] > From: Godfrey DiGiorgi > If you want the same field of view as a film body with a 15mm lens, > you need a 10mm lens for the Pentax DSLRs. I believe Sigma just > announced availability of their 10-20mm lens for Pentax mount: > http://www.dpreview.com/news/0512/05120601sigma_10-20mm.asp
