CZJ 2.8/50 can't remove focus ring!

Discussion in 'Camera Building, Repairs & Modification' started by elmariachi, May 5, 2010.

  1. elmariachi

    elmariachi Member

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  2. DWThomas

    DWThomas Subscriber

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    OK, I have zero specific knowledge, so this is just foolish speculation ...

    Is it possible this isn't supposed to come apart? From what I can tell via an LCD screen it looks as though it could be a pressed-in ring with that internal thread. In that case it could be expected to be permanently connected and turn with that outer piece. As it turns, whatever part it mates with would be driven in or out (or drive it in or out).

    My .05ยข
    (I'll go back to sleep now ... :D)
     
  3. Bob-D659

    Bob-D659 Member

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    From your photo's I can't even tell if it is a different piece of metal. What does it look like from the other side? Does the threaded ring move in the black piece?
     
  4. elmariachi

    elmariachi Member

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    the thread moves on the black piece, and it's movement is limited by an inside screw (hidden). my guess is that I'm going to need a lens spanner or some similar tool to unthread the metal thread (it's threaded on a finer thread)