Very high contrast green/blue emulsion for coating glass plates?

Discussion in 'Alternative Processes' started by Photo Engineer, Jan 3, 2006.

  1. Photo Engineer

    Photo Engineer Subscriber

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    AFAIK, all commercial emulsions are normal contrast for printing paper use.

    You may have to make your own. A simple AgBr/I emulsion is probably sensitive enough at that wavelength, but there are dyes that will sensitize this better. There is a web site for making laser emulsions.

    PE
     
  2. Photo Engineer

    Photo Engineer Subscriber

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    I have been unable to post for hours, and now things are coming out in the wrong order. Someone is playing with the time stamps on entries.

    PE
     
  3. gregben

    gregben Member

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    I would like to find a very high (graphic arts) contrast emulsion
    which I can coat onto glass plates. Plates are approximately
    18" square. I'll be exposing to 488nm (blue-green) light from a
    laser. I want to try to achieve Dmax of 4.0 or better.

    Any help appreciated.