Sigma 10mm F2.8 EX DC Fisheye HSM

[v one r]

http://www.dpreview.com/news/0711/sigma_10_fish.gifThe other type of fisheye lens available is the diagonal variety which squeezes a 180° angle of view into a standard rectangular format. This new 10mm F2.8 EX DC Fisheye HSM from Sigma is just such a lens. That said, it captures a true 180° vista only when mounted in front of a Nikon DX sensor - users of Canon and Sigma DSLRs make do with 167° and 154° respectively. A built-in lens hood and HSM focusing are here and the lens will focus down to 1.8cm (0.7 in) from the front surface of the lens giving a reproduction ratio of 1:3.3.

More... (http://www.dpreview.com/news/0711/07111401sigma10fish.asp)

[Thomas]

Wow interesting. Do you know how much it costs?

[Lone Wolf]

Can tell a newbie what's the difference between an ordinary fisheye and a diagonal fisheye?