Thanks for the input. I doubt I'd ever work my way up to a full frame. I also used a 1Ds MkIII at the Neo also, with the 20D. And it's obviously a nicer camera, but I could never personally justify the cost of that, or even a 5D.
If I was ever to upgrade from a 40D it would probably be within the xxD range. Hence I was at the EF-S fisheye lenses specifically. I was under the impression that due to being the APS-C sized sensor that a 15mm Canon fisheye on a 40D wouldn't distort much? Hence I thought a Sigma 10mm could be just the ticket.
Thanks for the macro help. The Sigma lens is cheaper then I was expecting. Onto the topic of EF-S again but with these, I noticed there is a
Sigma 70mm F2.8 for APS C which gives the same field of view as the 105mm on a full frame. Do you think that's a better option for me with a 40D?
Thanks again! I didn't realise there were so many photo experts here, and all very helpful.
