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Thread: Watson Acme

  1. #1

    Join Date
    Jan 2021

    Watson Acme


    I have a Watson Acme that I have been using for 5x7 paper negatives, made between 1890 to 1940, ish. The actual recess in the holder is 5x7-1/2'.
    I would love to find out more information relating to the holders size and the process it was designed for. All I can find on the web is that it was possibly a glass 1/2 plate?

    Can anybody help with this?


  2. #2

  3. #3
    Ron (Netherlands)'s Avatar
    Join Date
    Nov 2011
    The Netherlands

    Re: Watson Acme

    Sometime ago I started a little database on double bookform plateholders:

    Acme camera with matching half plate holders

    plate holder for half plate Acme camera with dimensions:
    When day is done......

    My Flickr

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