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Thread: copal 3/compur 3 mounting question

  1. #1

    copal 3/compur 3 mounting question

    i have lenses in both of these shutters and have noticed they both came with and are mounted with spacers (on toyo and technika boards). the compur doesn't seem to need the spacer but the copal looks as if it must use it. does the spacer effect the lens' nodal point on either shutter or are these shutters designed to be the length of the spacer in front of the lens board?

  2. #2

    copal 3/compur 3 mounting question

    Hi Adam, I owned a 210mm Osaka commercial in a copal 3 shutter, I used it on a Toyo AX and it required a spacer so that the apeture lever would clear the front standard, It has nothing to do with the lens nodal point. I suspect this is the reason your lenses are mounted this way. The tech board is about the same size as tghe Toyo.

  3. #3
    Nicolasllasera's Avatar
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    Re: copal 3/compur 3 mounting question

    Sorry to bring this back. But I have most of my lenses on Copal 3 shutters and they all come with a spacer to mount on the lens board. But I bought a lens on a Compur 3 and the seller didnt supply it, and I cant seem to find out if its missing the spacer or I dont know how to mount it. Basiclly the lens board is loose and spins as it looks like it need such a spacer. Please let me know as I have contacted the seller and he says the lens is ok as is.

  4. #4
    loujon
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    Re: copal 3/compur 3 mounting question

    It looks like you need this set. Retaining ring + spacer.

    http://www.ebay.com/itm/Retaining-Ri...-/140946762117

    I have no connection to this seller Just trying to help a brother out.

  5. #5
    Nicolasllasera's Avatar
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    Re: copal 3/compur 3 mounting question

    Thanks Louis. Thats exactly what I meant. I will wait for the seller to give me a partial refund and get that same one probably.

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