Originally posted by stevebrot What he said...except that it is possible that the aperture "follower" on either lens or camera has been damaged at some point and has slipped past its mate. If so, this is a sad day indeed.
Hi. I've got the exact same problem with my Pentax Super A and a Pentax-A 50mm 1.4.
I think the camera's aperture follower was damaged when using a M42 adapter.
I tried to remove the lens with a bit of force and tried to get to the lens from the back of the camera using a cable release. I failed.
Looks like the only chance to save the lens is to disassemble the camera from the back. Is there any way to do this without breaking it? The service manual did not really help. Any experiences anyone?
(I just registered when I found this thread after desperately trying to free the lens)