I have a 80 and 150 that operate fine on my 503cw however my 60 will not "click" into place and jams (cant wind) after I release the shutter while I was playing around with it. It isnt the body. I am afraid to mess with the locking mech on the lens or that little button or whatever that sticks out but I will if anyone has any suggestions. Help is GREATLY appreciated. Shooting some large groups soon and dont want to use the 80 over the 60.