old J and C 100 sheet film dev time?

Discussion in 'B&W: Film, Paper, Chemistry' started by echard, Feb 1, 2012.

  1. echard

    echard Subscriber

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    Hi All, I've dug up my old C1 view camera with the desire to shoot some new negatives for pt/pd. I have a 6 year old box of J and C 100 and see that, unfortunately, they are no longer around. I'm curious if anyone knows a development time for D76? I didn't find it on the Massive dev. chart. I'll likely use a undiluted stock mix.

    Thanks,
    Echard
     
  2. Rick A

    Rick A Subscriber

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    Look on the Massive development chart at digital truth site, under unlisted data. I know I've seen J&C pro 100 listed there before.

    Just checked, 9.5 mins for stock and 13.5 for 1+1, both times are 20c temp.
     
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  3. Konical

    Konical Subscriber

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    Good Morning, Echard,

    I can't help precisely with the JC/D-76 combo, but I've found that 7.5 minutes in HC-110B works fine. Maybe you can look at various developing charts for other films to see how D-76 and HC-110B times generally compare to establish a good starting point.

    (That's with continuous agitation drum processing.)

    Konical
     
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  4. snederhiser

    snederhiser Member

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    Hello Echard;
    The old J & C film is Shanghai GP3 100. For D76 straight I would develop for 8 to 9 minutes. This is a good starting point and adjust as needed. Good luck, Steven.
     
  5. echard

    echard Subscriber

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    Awesome! That's just what I was looking for!

    Many Thanks,
    Echard