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Thread: CEA OGA green sensitive x-ray film

  1. #1

    CEA OGA green sensitive x-ray film

    I just got a batch of CEA OGA green sensitive x-ray films (13x18).
    Has anyone determined the film speed and developing times at 20C?

    thanks,

    Wim

  2. #2
    おせわに なります! Andrew O'Neill's Avatar
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    Re: CEA OGA green sensitive x-ray film

    Which developer will you use? I'm using EI 100 with very dilute Pyrocat-HD, tray development, 21C.
    Have you looked through this thread? http://www.largeformatphotography.in...and-comparison

  3. #3

    Re: CEA OGA green sensitive x-ray film

    If there are no compelling reasons to do otherwise, I will use HC-110 with tray development. For my 4x5 I use the motorized Paterson Orbital. I did a global search on the film name and the only info I find is that it is "fast" and that development time is 90-180 seconds at high temperature (above 35C) - in a developing mechine, I presume.
    I have read parts of the very long x-ray thread (it convinced me to try it now myself) but haven't yet seen useful hints on film speed. Are there any specific parts you're refering to?

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    Re: CEA OGA green sensitive x-ray film


  5. #5
    おせわに なります! Andrew O'Neill's Avatar
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    Re: CEA OGA green sensitive x-ray film

    Great link, Liquid Artist!

  6. #6

    Re: CEA OGA green sensitive x-ray film

    Thanks. I just finished my first try. I shot two quarter cut sheets in my Rolleiflex, one exposed as 50ISO and one as 100ISO. I have developed 4 mins in HC110 agitating continuously. The 50ISO came out surprisingly well (64ISO will be my next guess); the developing could have been less. The finished sheets are surprisingly blue. At least now I now where my ballpark is and I can start serious testing. If I end up shooting 500 sheets at 3.5 cent per sheet, I'll be in heaven.

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