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Thread: Dissassembly of an Antique Brass Lens

  1. #1
    Drew Bedo's Avatar
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    Dissassembly of an Antique Brass Lens

    I have acquired an antique brass lens, without lens elements, for parts. The hood unscrews easily. I am looking to remove the flange for use with another lens. It is stuck. I have used hand strength without movement of any kind. I have used a flange wrench with no luck either. I am afraid to use much more force.

    Any tips or suggestions on how to remove this flange without damaging the flange or the lens barrel?
    Drew Bedo
    www.quietlightphoto.com
    http://www.artsyhome.com/author/drew-bedo




    There are only three types of mounting flanges; too big, too small and wrong thread!

  2. #2
    Tin Can's Avatar
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    Re: Dissassembly of an Antique Brass Lens

    some glue threads

    heat the flange

    ice the body
    Tin Can

  3. #3
    Drew Bedo's Avatar
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    Re: Dissassembly of an Antique Brass Lens

    TC: Thanks.
    Drew Bedo
    www.quietlightphoto.com
    http://www.artsyhome.com/author/drew-bedo




    There are only three types of mounting flanges; too big, too small and wrong thread!

  4. #4
    Mark Sawyer's Avatar
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    Re: Dissassembly of an Antique Brass Lens

    I'd run some penetrating oil into the threads and let it sit a few hours.
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

  5. #5
    Tin Can's Avatar
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    Re: Dissassembly of an Antique Brass Lens

    Better

    Quote Originally Posted by Mark Sawyer View Post
    I'd run some penetrating oil into the threads and let it sit a few hours.
    Tin Can

  6. #6
    Tin Can's Avatar
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    Re: Dissassembly of an Antique Brass Lens

    I used to freeze parts in -25F dunk tank

    and torch flywheel gears

    fall a part
    Tin Can

  7. #7
    Drew Bedo's Avatar
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    Re: Dissassembly of an Antique Brass Lens

    But this is brass . . .

    I'll try the penetrating oil followed by freezing the body with "canned air" and heat the flange with a small soldering iron.
    Drew Bedo
    www.quietlightphoto.com
    http://www.artsyhome.com/author/drew-bedo




    There are only three types of mounting flanges; too big, too small and wrong thread!

  8. #8

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    Re: Dissassembly of an Antique Brass Lens

    I highly recommend:
    Blaster Corp 16-PB-DS Blaster Penetrating Catalyst
    A car restorer recommended it to me as being a superior alternative to common "penetrating oil"... I tried it and he was right.

  9. #9
    (Shrek)
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    Re: Dissassembly of an Antique Brass Lens

    If there's no glass then heat the whole thing in the oven to loosen any old grease or threadlocker.

  10. #10
    Mark Sawyer's Avatar
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    Re: Dissassembly of an Antique Brass Lens

    Quote Originally Posted by Greg View Post
    I highly recommend:
    Blaster Corp 16-PB-DS Blaster Penetrating Catalyst
    A car restorer recommended it to me as being a superior alternative to common "penetrating oil"... I tried it and he was right.
    That's what I use. It's still a petroleum-based penetrating oil, but with some "enhancements" like naphtha, so use it outside.
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

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