I have used it on a 40D and didn't have the focus or IS problems. It is a plastic fantastic. (not very sturdy build) But the IS works great. And it takes very sharp photos. You can see a small write up and a compairson shot. Compaired to my 300mm F4L prime. (A very sharp lens)...
I have used it on a 40D and didn't have the focus or IS problems. It is a plastic fantastic. (not very sturdy build) But the IS works great. And it takes very sharp photos. You can see a small write up and a compairson shot. Compaired to my 300mm F4L prime. (A very sharp lens)...