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Thread: How to repair a bent brass lens hood...

  1. #1
    Alex Timmermans
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    May 2008
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    How to repair a bent brass lens hood...

    I recently found a nice Dallmeyer 3a.
    Unfortunately it's lens hood was bent at several places.
    This is the way how I solved it.
    http://collodion-art.blogspot.nl/201...lens-hood.html
    "You dont take a picture, it's given to you"

    www.alextimmermans.com
    www.collodion-art.blogspot.com
    email : collodion-art dot onsmail dot nl

  2. #2
    Green Hand pierre506's Avatar
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    Re: How to repair a bent brass lens hood...

    Good method, Alex.
    Sometimes love just ain't enough.
    http://www.flickr.com/photos/pierre506/sets/

  3. #3

    Join Date
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    Re: How to repair a bent brass lens hood...

    I notice you use plywood.
    When I do this, I use sections of the very hard and tough african (?) woods used for wood flooring planking for outside terraces - readily available everywhere.

    There is a technical problem with thicker types of lens hoods with fine threads for mounting ( I write from experience with Cooke IIE). If these hoods are taken off the lens for treatment, the torque produced by the compression is enough to distort the mounting thread, which is no longer in a perfect plane, and impossible to mount on the lens again. A small problem can become a bigger problem!

  4. #4
    Alex Timmermans
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    Re: How to repair a bent brass lens hood...

    Steven ,

    I have been using concrete multiplex. best quality one can get. Very hard and stiff.
    So it won't bend o break.

    Good point about the threads. In that case it might be safer to leave the hood onto the lens.
    But for me it worked just fine and had no problems mounting it again.
    "You dont take a picture, it's given to you"

    www.alextimmermans.com
    www.collodion-art.blogspot.com
    email : collodion-art dot onsmail dot nl

  5. #5

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    Re: How to repair a bent brass lens hood...

    I did think about leaving the hood in position when doing the "squeeze" but considered that this might result in completed jamed threads - for ever.

    The Cooke IIE ended up with the perfect lens hood circle, but a mounting thread that was +/ - 0.5mm out of plane. I could rock it on a flat surface!

  6. #6

    Join Date
    Nov 2012
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    42

    Re: How to repair a bent brass lens hood...

    You could always use the bent lens ring repair tool?


  7. #7
    Alex Timmermans
    Join Date
    May 2008
    Location
    Holland
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    Re: How to repair a bent brass lens hood...

    Not really as the radius of these lenshoods are always different and these hoods
    are much bigger (higher) than a lens ring.
    "You dont take a picture, it's given to you"

    www.alextimmermans.com
    www.collodion-art.blogspot.com
    email : collodion-art dot onsmail dot nl

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