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Thread: Mounting a Metal Retaining Ring onto a Metal Lensboard

  1. #11

    Join Date
    Dec 2009
    Location
    Saratoga Springs, NY, USA
    Posts
    798

    Re: Mounting a Metal Retaining Ring onto a Metal Lensboard

    Thanks Roger! I took the path of least resistance!

    Quote Originally Posted by Roger Thoms View Post
    Good job David, glad to see you kept it simple.

    Roger
    David Aimone Photography
    Critiques always welcome...

  2. #12

    Join Date
    May 2015
    Location
    SooooCal/LA USA
    Posts
    1,674

    Re: Mounting a Metal Retaining Ring onto a Metal Lensboard

    I didn't see a problem as long as the nuts were inside the FS cut-out...

    I'm dealing with a older Tek III board that is thinner, and the oversized hole is almost the baffle cut out size, but outside of it has no room for screws +nuts... I probably have to go to epoxy to make this adapter board...

    Linhof used to rivet flanges to some boards...

    Steve K

  3. #13

    Join Date
    Aug 2004
    Location
    NYC
    Posts
    256

    Re: Mounting a Metal Retaining Ring onto a Metal Lensboard

    small rivits if you ever decide to remove it one day.
    epoxy is the easiest way out.

  4. #14
    Eric Woodbury
    Join Date
    Dec 2003
    Posts
    1,310

    Re: Mounting a Metal Retaining Ring onto a Metal Lensboard

    I wish they'd put self-tapping threads on lenses. I have an enlarging lens for which I have no retaining ring. I made a ring out of soft wood and forced the lens into the hole.

  5. #15

    Join Date
    Aug 2000
    Location
    California
    Posts
    2,973

    Re: Mounting a Metal Retaining Ring onto a Metal Lensboard

    Quote Originally Posted by Havoc View Post
    You cannot tap a hole in a plate that is thinner than the diameter of the thread (not if you want to secure anything with that thread). Just drill a hole and use a star washer and nut at the other side with a dab of loctite. Otherwise, turn both sides down to bare metal and use loctite (the variety for definitive mounting gears) but then you need a close fit on the surfaces. You could also go vintage and use rivets but then you need the blind ones otherwise you can end up with a light leak.
    Ihave 6 or 7 Technika boards which have been tapped in this manner. A nut can be applied on the rear of the board if one feels insecure.

  6. #16

    Join Date
    Sep 2008
    Location
    Sarnia, Ontario, Canada
    Posts
    744

    Re: Mounting a Metal Retaining Ring onto a Metal Lensboard

    And with the lens removed, a little flat black paint sprayed on the back of the lens board also serves as thread locker...

    Make sure you tape over the threads on the lens flange.

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