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Thread: CMS 20 II 4x5 Developer Test

  1. #1
    おせわに なります! Andrew O'Neill's Avatar
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    CMS 20 II 4x5 Developer Test

    Just uploaded part one on YouTube. I'm sampling Xtol, POTA, and Caffenol CL-CN, and comparing them to Adotech IV. In part two (currently testing) I'll sample Pyrocat-HD (mostl likely 2-bath), D-23, TD-LC 103, and LC-1B. It's a quest to find a decent alternative to Adotech IV.


  2. #2

    Re: CMS 20 II 4x5 Developer Test

    This was a really great video Andy
    Thanks

  3. #3
    darr's Avatar
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    Re: CMS 20 II 4x5 Developer Test

    Thanks Andy! Another excellent video.
    Looking forward to Part 2.

  4. #4
    Martin Aislabie's Avatar
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    Re: CMS 20 II 4x5 Developer Test

    Nice video Andy

    Keep up the good work

    Martin

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    Re: CMS 20 II 4x5 Developer Test

    I saw this video the other day and really enjoyed it (like all of your videos). What is POTA? Looking forward to the pyrocat hd test. Have you ever tested developers for CHS. II?

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    Re: CMS 20 II 4x5 Developer Test

    Thank you very much for sharing, Andrew.
    And please keep going!


    Quote Originally Posted by Michael Wellman View Post
    What is POTA?
    The answer is on this video!

  7. #7

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    Re: CMS 20 II 4x5 Developer Test

    Quote Originally Posted by Michael Wellman View Post
    I saw this video the other day and really enjoyed it (like all of your videos). What is POTA? Looking forward to the pyrocat hd test. Have you ever tested developers for CHS. II?
    POTA was formulated by Marilyn Levy when she was working for the military. Itís an acronym for Photo Optics Technical Area.

    1l
    30g sodium sulfite anhydrous
    1.5g Phenidone

  8. #8
    おせわに なります! Andrew O'Neill's Avatar
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    Re: CMS 20 II 4x5 Developer Test

    Thanks everyone! Yes, POTA is Marilyn Levy's baby. It's currently in the "alternative to Adotech IV battle". I've decided to make a family of curves using Adotech IV, POTA, Caffenol CL-CN, and D-23. I'm down to two sheets, so have to wait about a week for another box to arrive. I feel it's necessary to go through this agony to nail down EI's and N times. I hate guessing, especially with such an expensive film and developer. This will take a lot longer than I initially thought...

  9. #9
    おせわに なります! Andrew O'Neill's Avatar
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    Re: CMS 20 II 4x5 Developer Test

    Quote Originally Posted by Michael Wellman View Post
    I saw this video the other day and really enjoyed it (like all of your videos). What is POTA? Looking forward to the pyrocat hd test. Have you ever tested developers for CHS. II?
    Thanks, Michael. Yes, I have tested CHS with Pyrocat-HD. Eventually, I'm going to work out times for Xtol-R, as it's become my main developer...again.

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