From: "Schlake (William Colburn)" <[EMAIL PROTECTED]> > > Does anyone here have a "Sigma 8mm F4 EX Auto Focus Circular Fisheye > Lens" on a 1.6 crop factor EOS digital, or know of where I could turn up > some example images from such a pairing? > > From the specs it looks like the lens would provide a full frame effect > on a 1.6 instead of a circle, and that might an interesting effect. > I've always been fascinated by fisheye photographs, but I've never > actually owned a fisheye lens and they are expensive. >
Hi William, A circular fisheye has an image circle of 24mm. A 1.6 sensor is about 22x15mm, so you're covered on the horizontal/vertical, but the diagonal is about 27mm, leaving you 3 mm short there. In other words: almost full frame, but with black corners. -Terje * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
