Just got myself a Pentax-M 50mm F2 and I realized that it has 2 problems, not sure if they are related:
1)The aperture ring is very loose and no click sound when I turn it, when I take it apart, it seems like the small metal ball is not there anymore.
2)When I adjust the focus, the lens will eventually come apart as the front part of the lens will be completely screw off. What stops the front part from being completely screw off in a good lens?
Repair experts, is there a way that I can try to fix this myself??
Last edited by protocold; 08-13-2009 at 12:12 AM.