Help repair Olympus 55mm f1.2

Discussion in 'Camera Building, Repairs & Modification' started by darinwc, Apr 28, 2013.

  1. darinwc

    darinwc Subscriber

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    Hello.
    Picked up an Olympus Zuiko 55mm f1.2 in poor shape
    Fortunately, the glass only needed a good cleaning. A few very minor blemishes left but very minor.

    OK, 2nd problem, the focus ring is not linked to the mechanism. It rotates freely and the lens doesn't focus at all.
    I removed the rear mount, hoping I could take the focus ring off and get a look at the problem.
    But I still cannot remove the focus ring and now I am not sure if I can remove it at all by going in through the back.

    Does someone have a diagram or instructions on dissembling this lens?
     
  2. eggen

    eggen Subscriber

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  3. wblynch

    wblynch Member

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    Typically OM lenses have set screws under the rubber grip. Carefully remove the grip and don't stretch it or you will be very sad.

    The set screws can be tightened once you set the ring correctly and then a drop of nail polish or lacquer will keep them from moving. Some new adhesive will retain the grip. I have used many rubber bands to hold a grip tight while the adhesive sets.

    Such a nice lens might deserve a trip to our favorite OM expert or other pro.
     
  4. darinwc

    darinwc Subscriber

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    I have the rubber grip off. The focussing ring is missing one of the three set screws.
    It appears I can tighten the two, but after doing so, I cannot move focus either.
    (i cant move make it actually focus at all.. maybe the focusing is seized up)
     
  5. benjiboy

    benjiboy Subscriber

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    I suggest you take it to a professional, it would be a shame to destroy such a fine lens.
     
  6. darinwc

    darinwc Subscriber

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    At this point in time it looks like it will cost me too much to have it repaired.
    I will probably put it up for sale.
    Oh well, you win some, you loose some.
     
  7. Ed Sawyer

    Ed Sawyer Member

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    Find a third setscrew, and try that before selling. They will need to be all 3 tightened equally or the helicoid will bind.