I have a few and have gone out and shot with a couple of them. My 4B images seemed really soft. I was havign a hard time getting decent exposures with my 1D, though i believe I ended up with a few images. Guess I just didn't like any of them. Ther 1D does tend o go faster on one side than the other. I will have to take it more seriously at some point. I have a 1D, 4B, 4D, and a 3A.(http://jamieyoungphoto.com/cameras%20panoram%201.html)