open a lens

Discussion in 'Rangefinder Forum' started by dxphoto, Jun 13, 2008.

  1. dxphoto

    dxphoto Member

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    Hi,

    Do you guys happen to know how to open a leica lens? need to clean the haze. I have a 50mm summicron, made in canada with tab. Thanks.
     
  2. Pinholemaster

    Pinholemaster Member

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    The only way I open a Leica lens is by sending it to a trained technician.
     
  3. Uhner

    Uhner Member

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    I agree, that is really the best option.
     
  4. df cardwell

    df cardwell Subscriber

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    My late friend Sheldon Brown designed
    a precision instrument for just this purpose:

    [​IMG]

    Get a good grip, and just reef on it
    Should do the trick




    .​
     
  5. David Brown

    David Brown Subscriber

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    I successfully opened a Mamiya lens years ago. Ended up sending all the pieces in a box to Paul Ebel so he could put it back together.
     
  6. Frank Szabo

    Frank Szabo Member

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    This guy and some high explosives should do the trick, along with a pipe wrench, of course..
     
  7. elekm

    elekm Member

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    Generally, you must remove the face ring. But it depends on the lens. If it has slots, you can use a spanner wrench. Otherwise, you can use a rubber plug.

    However, some lenses aren't easily disassembled and require special tools.

    Upon reassembly, you should recollimate the lens.
     
  8. iamzip

    iamzip Member

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    I need to get me one of those!
     
  9. tony lockerbie

    tony lockerbie Subscriber

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    DF, we are talking lens repair..... not dentistry!

    Tony
     
  10. df cardwell

    df cardwell Subscriber

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    Sheldon's Tork-Grip also functions as an inertial impact alignment tool.

    As for cleaning the lens cells, the diaphragm, and collimation, it is next to useless.

    I'm pretty sure DAG is much less expensive than a genuine Tork-Grip.

    TORK-GRIP Universal Torque Wrenches are not available in any store,
    only on the Internet! Order Yours Today!!!


    .http://www.sheldonbrown.com/tork-grip.html
     
  11. dxphoto

    dxphoto Member

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    hey guys... you guys are sooooo cool.... I was with a guy who fixes cameras but didn't know how to open this type of lens.... I've decided to send it to DAG....
    thanks a lot for all the inputs.
     
  12. df cardwell

    df cardwell Subscriber

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    Steve Grimes always said it was never a good sign
    when you gave your Leica to a repairman who said,
    "Oooh ! I've always wanted to work on one of THESE !"

    good luck dx !
     
  13. lens_hacker

    lens_hacker Member

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    I've disassembled a Type I Rigid Summicron, several collapsible Summicrons, Summitars, a Summar, and 9cm Elmars. I would vote to send a more modern lens to DAG, Essex, or Youxin Ye or other experienced person for cleaning.

    I would not take apart the newer Leica lenses.