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Thread: Lens board hole-size

  1. #1
    Eivind
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    Lens board hole-size

    Hi there. I am a bit unfamiliar with what sizes the holes of my lensboards should be.
    My large format equipment so far:

    Chamonix 4x5 viewcamera
    Rodenstock APO Sironar S 210 mm (brand new)

    I will also buy a 150 or a 90 mm when I find it. Probably Rodenstock or Schneider.

    I have ordered two lensboards to fit on my gear. Hugo now wants a reply on how large I want the holes.

    How large do I want them ?

    Thanks for replying within a limited time, as this is the last thing I am waiting for.

    Best,

    Eivind

  2. #2
    Administrator Bob's Avatar
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    Re: Lens board hole-size

    It is dependent on the shutter.
    The 210mm S uses the Copal 1 which needs a 41.8mm lend board hole.
    The 150 Rodenstock will need a 34.8mm lens board opening since it uses a Copal 0
    see data at http://www.linos.com/pages/mediabase...log_e_2270.pdf
    -bob

  3. #3
    Senior Member Lars's Avatar
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    Re: Lens board hole-size

    As Bob indicated, hole sizes are related to shutter size, which essentially comes in three sizes today: Copal 0, Copal 1, and Copal 3.

    If you order lensboards from a LF dealer or manufacturer, all you should need to know is which shutter size the lens uses.
    Monochrome: http://mochro.com

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