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  1. #1

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    Carryover with drum development

    After many years of tray development, I finally took the suggestions of many and tried drums. Gosh! My negs have never looked better--especially the 7x17s. I have done a half-dozen each in 3 formats, using 8x10, 11x14, and 16x20 drums. The results, on Efke PL 100 M, *look fine*.
    But wait. I used to fuss about carrying over 10 drops of one solution into the next 4 liter tray. Now I see 5 times that amount going into 1/60th solution, that no amount of shaking and gyration can remove from the drums. I foresaw that problem and follow each solution with a greater than recommended (> 2 oz. for 8x10; > 8 oz. for 16x20) distilled water rinse.
    My drums come with instructions for printing color, and I have read several "how to" posts here in the forums, but I have a nagging question.
    What should I be doing about time and volume (and ? number) of rinses between development steps to insure that these great looking negatives are, in fact, archivally processed, and don't stain, mottle, or crud up sometime down the road?

  2. #2
    Photo Engineer's Avatar
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    That is why a stop bath is used. A prewet is recommended, and a tray wash for prints is suggested.

    PE

  3. #3
    Lopaka's Avatar
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    I run all my film on a JOBO and have had no problems. I do use a stop after the developer for B&W. If you are not using an acid fix, use plain water. One rinse of same volume as dev is enough. I do 4 water changes rinse on the machine after fixing (helps rinse out the funnel) then wash the film off the machine.

    When I do E-6 I use 4 water rinses after 1st dev then proceed through the other steps.

    Bob
    "I always take a camera, That way I never have to say 'Gee, look at that - I wish I had a camera'" -Joe Clark, H.B.S.S.

  4. #4
    Photo Engineer's Avatar
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    Well, due to carryover and drum design, the Jobo carries over a considerable amount more developer into the rinse and it allows development to continue. In addition, the final wash is less efficient. I remove prints to a holding tray and rewash them after a session. When doing film, I take the film off of the drum and wash it with a Jobo washer or something similar as per Jobo's instructions.

    However, you do what works for you.

    PE

  5. #5

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    Quote Originally Posted by Photo Engineer View Post
    That is why a stop bath is used. A prewet is recommended, and a tray wash for prints is suggested.

    PE
    I am actually using 2 2-minute prewashes, the first with double the recommended volume.
    I use Kodak Stop Bath after the HC 110 (b) development. Then I rinse with distilled water for 1 minute before the 2 minute fix with hardener (this is Efke, after all).
    Following 4 minutes in 1:4 Hypoclear, I wash negs (8x10 and 11x14) in a print washer for 1 hour. The 7x17s don't fit, so get 5 changes in a tray. Everything gets another rinse in a tray with PhotoFlow prior to hanging.
    This seems to me to be enough to qualify as archival, but I need to know if I'm missing a step, or 3.

  6. #6
    Photo Engineer's Avatar
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    I use an 11x14 tray of still water to hold prints during a session, and then when I'm done, I then wash in running water with a tray siphon for the desired time.

    What you are doing seems overkill by using hypcolear and then washing for 1 hour. IDK. I have not tested the stability, but a 1 hour wash should be enough all by itself.

    PE

  7. #7

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    I use (2) 1 minute plain water rinses between the developer and fix. After the fix I again run (2) rinses as much to rinse out the drum & lift as to give the negs a preliminary wash. After that I remove the negatives from the 3010 drum and wash them in a tray. As for the archival quality, at 54 years old, I only want them to last another 20 years or so. After that I could give a rip.

  8. #8
    imazursky's Avatar
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    I use a Phototherm rotary tube drum processor.
    It uses a water stop and the negs are great.
    No problems at all.
    -ian mazursky nyc
    www.prepressexpress.com PrePress for photographers.
    www.ianmazursky.com Travel, Landscape, Portraits and my 12x20 diary



 

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