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Thread: Jobo 2840 drum for film

  1. #1
    Japan Exposures
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    Jobo 2840 drum for film

    Hi, I just bought a Jobo 2840 drum which i want to use for paper and film. Did a first couple of 8x10 sheets in it today. When finished, the film is really stuck to the drum walls and difficult to remove. I managed by removing those little spacers and peel the film off (the famous hole in Acros facilitated some paper clip action), but it seems risky to damage film. Any tricks/advice to easily get film out of a Jobo paper drum (perhaps need to leave water in it)?

  2. #2

    Join Date
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    Re: Jobo 2840 drum for film

    My best advice is to get a 3005 Expert Drum. The five "cylinders" in an Expert are not cylindrical at all. Rather, they have larger diameters in their centers than ends, a 'reverse-hourglass' shape, to ensure fluid can access the back of film.

    So now I've joined those who post in threads with alternative approaches instead of answsers to questions. It's well-intentioned, not an attempt to be annoying. By the way, I've observed that Acros lays closer against the drum wall than any other manufacturers' sheet films. In an Expert Drum I consider it an advantage, since there's no tendency for the film to shift around during processing. With your 2840 it probably makes the problem worse.

  3. #3

    Re: Jobo 2840 drum for film

    I load and unload in water.

  4. #4

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    Re: Jobo 2840 drum for film

    Does the drum have the ridges along it? My 2830 drum does, and it's not difficult to remove the film - and they function as spacer between the film and the wall of the drum.

    I can very well remove it without water in it.
    Jiri Vasina
    www.vasina.net

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  5. #5
    Japan Exposures
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    Re: Jobo 2840 drum for film

    Thanks, I will try the water method or switching to expert drums/a different film/digital/voodoo magic... Yes, avoidance is a solution, but we're not quite there yet

  6. #6
    Japan Exposures
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    Re: Jobo 2840 drum for film

    Had a different idea: since the 2840 is modular, you can take the extension off when finished giving better access to the sheets. Actually, it seems easier to push them out instead of pulling... thanks.

  7. #7

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    Re: Jobo 2840 drum for film

    loading without the clips may help too. Does really help with paper.
    When you are walking on thin ice, you might as well dance.

  8. #8

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    Re: Jobo 2840 drum for film

    When I was using the 2840 for 8x10 film, I did the same as Chauncey and filled it with water, releases the tension and film comes out much easier. No sticktion to the drum.

    Do the same thing with the 3010 drums and 4x5 film.
    notch codes ? I only use one film...

  9. #9

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    Re: Jobo 2840 drum for film

    plus one on losing the clips and leaving the bottom off.

    a 2830 might work better. they use less soup.

    same drum flat bottom. for 8 x 10
    When you are walking on thin ice, you might as well dance.

  10. #10

    Join Date
    Nov 2007
    Location
    England.
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    Re: Jobo 2840 drum for film

    I have processed 8x10 sheets in a 2800 series print drum with very uniform processing.
    The poor man`s Expert Drum. I used 500ml each of working strength developer, stop-bath and fixer to process two sheets of 8x10.

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