Quote:I was just thinking: What a waste of already small sensor area... :ph34r:Same as with the Sigma 4.5mm f/2.8 really... (though I'd like to try it once for a laugh).
I'm not much a fan of circular fisheyes. Diagonal ones, on the other hand, are a good thing to use. I would get the Canon 8-15L (that my wife covets anyway) not because it has the circular option, but because neither of us use a full-frame camera, and the zoom lens has those precious intermediate settings workable on any of the smaller formats.