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Thread: Can you help me get this lens cell apart

  1. #21

    Join Date
    Aug 2004
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    Re: Can you help me get this lens cell apart

    acetone or nail polish remover... same stuff, different price.

    lacquer thinner works the same if you have some around.

    it was common for manufacters to use lacquer as a lock tite.

  2. #22

    Join Date
    May 2006
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    Scarsdale, NY
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    Re: Can you help me get this lens cell apart

    No experiments today - out of town.

    Crazy glue, will often fracture if frozen. That didn't work when you tried it?

    Charley

  3. #23

    Join Date
    May 2016
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    Licking County, Ohio
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    Re: Can you help me get this lens cell apart

    Well, end of this project

    There was no way the front lens could come out the back of the cell, so that inner ring had to be a retaining ring. I threw everything I had at it. Heat, cold, solvents, vibration, and finally brute force. I eventually use a jewler's saw to cut slots in the ring for a lens spanner to fit into. Applying an entirely unreasonable amount of force, I got the ring to unscrew about 30 degrees before the lens spanner snapped in half and the shattered stub smashed straight into the center of the lens. So that Tessar is no more.

  4. #24

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    Re: Can you help me get this lens cell apart

    The price of a education can be dear.

    Charley

  5. #25
    Serious Amateur Photographer pepeguitarra's Avatar
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    Re: Can you help me get this lens cell apart

    Quote Originally Posted by Paul Ron View Post
    acetone or nail polish remover... same stuff, different price.

    lacquer thinner works the same if you have some around.

    it was common for manufacters to use lacquer as a lock tite.
    Nail polish no longer has acetone on it. I once got my four fingers glued with Loctite while holding a bridge on a guitar that I was gluing. I used nail polish with no avail. Then my neighbors had acetone, acetone did it.
    "I have never in my life made music for money or fame. God walks out of the room when you are thinking about money." -- Quincy Jones

  6. #26

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    Re: Can you help me get this lens cell apart

    Quote Originally Posted by c.d.ewen View Post
    The price of a education can be dear.

    Charley
    It didn't hurt too bad, actually. It had been sitting on the shelf at the store for years so I was able to bargain them down to $80. For that, I got the lens, lensboard, and a near mint #6 Packard with the rare-as-hens-teeth pneumatic pass through, so I still did ok even with the lens being a write off. I'm glad I didn't have this happen to a more expensive lens though.

  7. #27
    Serious Amateur Photographer pepeguitarra's Avatar
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    Jan 2018
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    Los Angeles Area
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    Re: Can you help me get this lens cell apart

    Quote Originally Posted by williaty View Post
    Well, end of this project

    There was no way the front lens could come out the back of the cell, so that inner ring had to be a retaining ring. I threw everything I had at it. Heat, cold, solvents, vibration, and finally brute force. I eventually use a jewler's saw to cut slots in the ring for a lens spanner to fit into. Applying an entirely unreasonable amount of force, I got the ring to unscrew about 30 degrees before the lens spanner snapped in half and the shattered stub smashed straight into the center of the lens. So that Tessar is no more.
    Been there , done that.
    "I have never in my life made music for money or fame. God walks out of the room when you are thinking about money." -- Quincy Jones

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