Thanks, Don, Grant.
I finally took it apart, basically trying every avenue.
I got the same assembly you pictured, and one thing I dont know if you
tried was unscrewing in the reverse direction. I found out that this
screws in the opposite of a normal screw. So turn it as if you were
tightening a conventional screw.
I also found out that the middle element is removed via the front, by
removing a brass retainer behind the front-most tube assembly. I wish I
knew that then, I could have avoided screwing around with the infinity
set point.
Grunt wrote:
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
