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  1. #11

    Join Date
    Dec 2004
    Shooter
    Multi Format
    Posts
    2,146
    Quote Originally Posted by Murray@uptowngallery
    Is the groove for light trapping only, or is it part of filmholder retention too?
    Both, but I can't tell you what is te most important one:
    - the ridge will make sure that the filmholder sits at the appropriate place in the camera back, i.e. compared to the ground glass on which you compose the image.
    - since a filmholder without the ridge feature an open end at the side you insert it in the camera back, it would be prone to light leaks, even with velvet light trap.

    G

  2. #12

    Join Date
    Aug 2004
    Location
    Canada
    Shooter
    4x5 Format
    Posts
    468
    What about a slot cutter in a router table with a fence?

    joe

  3. #13

    Join Date
    Jun 2005
    Location
    South of Rochester, NY, USA
    Shooter
    Large Format
    Posts
    256
    The router table w/fence is a perfect idea, but not witrh a slot cutter, which is essentially a saw blade with 2 or 4 teeth. And you'd need a horizontal table which very few people own.I would recommend a spiral bit with a downward cut. That keeps the edges from tearing up... Same thing can be done with a Dremel...

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