Don, While you are peeking, I have disassembled a jammed Pentax M 50mm f2 also. I am perplexed because the final part of the puzzle pictured here: http://pages.videotron.com/granth/M50 doesn't make sense. Logically the silver ring, which has the focus ring attached to it normally, should turn within the black body ring and should be held in place withing the black ring someway (if not the whole lense mechanism would drop off - I think.) It is jammed solid - and I don't see anything that would keep the 2 pieces from separating (if they weren't jammed together.) What am I not seeing/understanding? The only thing I could suspect is that the 2 pieces are pressed together and groove in one accepts a protuding "tongue" on the other to keep them together but permitting the necessary rotation. Grant
> -----Original Message----- > I'll peek at one of my junk ones tomorrow and see what I can figure out. > > Don >> From: Gonz [mailto:[EMAIL PROTECTED] >> Sent: Saturday, March 18, 2006 4:48 PM >> To: [email protected] >> Subject: Re: lens help >> >> >> Its an M50. >> >> The front two elements came out, each had their own retaining ring. The >> back two elements are together in on assembly that screws on, and can be >> removed with a spanning wrench. That leaves one middle element which I >> cannot figure out for the life of me how to get out. I want to get it >> out because I am creating a lens with only the front element. >> >> Thanks, >> >> rg >>

