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Thread: Wide Field Ektar 135mm - Lens Board Copal Size?

  1. #1

    Wide Field Ektar 135mm - Lens Board Copal Size?

    Hello,

    I recenly bought a knew 135mm Wide Field Ektar in a Supermatic shutter. I was wondering if anyone knew what size lens-board opening - copal- I would need to adequately secure this lens? I am using a Linhof III Technika and will have to buy a new lens board for it.

    Thanks so much for your help!
    From your Canadian friend,

    Lisa

  2. #2

    Join Date
    Apr 2000
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    709

    Wide Field Ektar 135mm - Lens Board Copal Size?

    You will need a blank board and to cut the hole to size.

  3. #3

    Join Date
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    709

    Wide Field Ektar 135mm - Lens Board Copal Size?

    BTW the mounting holes for Copals are as follows (from skgrimes.com)
    0: 34.6mm 1: 41.6 3: 65 3s: 64.1.

  4. #4

    Wide Field Ektar 135mm - Lens Board Copal Size?

    I think a Copal 0 sized hole should work...

  5. #5
    Octogenarian
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    Wide Field Ektar 135mm - Lens Board Copal Size?

    Hi Lisa,

    Check with K.E.H., in Atlanta, GA. (www.keh.com). They have several previously owned Linhof Tech. lensboards listed on their website. A call will verify if one of them will fit your shutter. They also have a blank one listed in case you need a special size. K.E.H. ships internationally.

  6. #6

    Join Date
    Feb 2004
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    Scottsdale, AZ
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    Wide Field Ektar 135mm - Lens Board Copal Size?

    Not the answer to your question, but here are all the hole sizes for all shutters out there - I have bookmarked this page (it's actually from this forum) and use it all the time: http://www.largeformatphotography.info/lensboard_hole_sizes.html
    Juergen

  7. #7

    Join Date
    Apr 2000
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    709

    Wide Field Ektar 135mm - Lens Board Copal Size?

    Very cool link, Juergen. Alas the Supermatics are missing.

  8. #8

    Join Date
    Dec 2001
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    NJ
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    4,886

    Wide Field Ektar 135mm - Lens Board Copal Size?

    Lisa, it isn't a new lens and Supermatics don't conform to the Prontor/Compur/Copal ... sizes. Get a board, send it and lens to a craftsman such as www.skgrimes.com

  9. #9

    Join Date
    Apr 2000
    Posts
    709

    Wide Field Ektar 135mm - Lens Board Copal Size?

    A lot depends on whether your boards are wood or metal. As Ralph said in the link, there are options: for metal boards, your local machine shop is your friend. Just tell them how big to make the hole (give about .010" for clearance). For the wooden boards that I use (Wisner), I find an undersize hole saw and whittling usually suffice.

  10. #10

    Wide Field Ektar 135mm - Lens Board Copal Size?

    i have a 127 ektar in a supermatic shutter. it needs a hole in the lens board that is just bigger than a copal 0 opening. i bought a lens board with a copal 0 opening and then sanded (and cleaned thouroughly) the opening to the size i needed.

    it ain't a glamorous solution, but it seemed to work for me.

    -m

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