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Thread: New Jobo Chemistry Announcement

  1. #1

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    New Jobo Chemistry Announcement

    Jobo placed an announcement on Facebook (See below) about the new Alpha Film Developer. Does anyone have any other insight? It isn't on the Jobo-USA site. Click image for larger version. 

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    JOBO alpha is optimized to develop B/W negative films in rotary processing. What the JOBO alpha developer stands for: fine grain. High sharpness. Great use of film speed.
    In combination with teh JOBO alpha neutral fixer, the entire process takes place in an alkaline to pH-neutral environment. A short wash replaces the usual stop bath. The whole process is gentle on the film and highly ecological. It saves chemicals and water whilst achieving high long-term stability.
    JOBO: pure. analog. passion.

  2. #2
    ic-racer's Avatar
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    Re: New Jobo Chemistry Announcement

    Looks promising.

  3. #3
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    Re: New Jobo Chemistry Announcement

    The data sheet is available from the main Jobo (Germany) site - click on the References/Downloads tab in the middle of this page:

    https://www.jobo.com/en/chemistry/9511-b-w-developer

  4. #4

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    Re: New Jobo Chemistry Announcement

    Interesting that it is a two part mix. It doesn't appear in the typical stores in the US. I'll do some testing and plot curves when I get it.

  5. #5

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    Re: New Jobo Chemistry Announcement

    It just showed up on the CatLabs site FYI. https://www.catlabs.info/product/alpha

  6. #6

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    Re: New Jobo Chemistry Announcement

    Interesting! What makes this developer “optimized for rotary processors”?

  7. #7

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    Re: New Jobo Chemistry Announcement

    Quote Originally Posted by Kiwi7475 View Post
    Interesting! What makes this developer “optimized for rotary processors”?
    I guess it is perhaps somewhat lower contrast as the rotary process is actually a continuous agitation?
    And if it is, then it might be interesting while shooting roll film during the summer, when the light is harsher, to use it in a hand agitated tank?

  8. #8

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    Re: New Jobo Chemistry Announcement

    Quote Originally Posted by Kiwi7475 View Post
    Interesting! What makes this developer “optimized for rotary processors”?
    Marketing.

  9. #9
    ic-racer's Avatar
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    Re: New Jobo Chemistry Announcement

    Yes, at 24C, some developers 'not optimized for rotary' will have times less than 4 min.

  10. #10
    Tin Can's Avatar
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    Re: New Jobo Chemistry Announcement

    alpha
    Tin Can

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