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Thread: Photo Flo In Presoak OK for PMK?

  1. #21
    おせわに なります! Andrew O'Neill's Avatar
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    Re: Photo Flo In Presoak OK for PMK?

    Yes, it will be okay with PMK. The only time I stick Photo-Flo in a developer these days is when I use Two-Bath Pyrocat-HD... in bath A. Helps reduce risk of mottling when going into Bath B. I've never seen mottling, so it must be working

  2. #22
    Drew Wiley
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    Re: Photo Flo In Presoak OK for PMK?

    Bingo! Part of the problem is due to the design of certain brands of rotary tanks which simply fill and drain too slow. I can fill even a 30X40 inch print drum during rotation in 5 sec. That's due to superior drum design. Conversely, some practitioners might have in mind passive dunk tanks and film hangers, where submersion is almost instantaneous. Then there are those who do shuffling in trays - my preferred method for sheet film. Truly predictable results won't tolerate even a ten second variance between sheets. For truly fussy work like matched color separation negs or associated masks, the method and timing of the film sequence must be first-in, first-out, in exact order. So overall, there is no one generically correct answer, because we have somewhat different equipment and development protocols.

  3. #23

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    Re: Photo Flo In Presoak OK for PMK?

    Drew, good old shuffling in trays? I thought you of all people would have reclaimed whatever custom whiz bang jacketed xenon burst thing they used at JPL back in the day.

  4. #24
    Drew Wiley
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    Re: Photo Flo In Presoak OK for PMK?

    I done tried all them durn whizz-bang approaches, but then me gunpowdr get isself all wet in the derkness and cain't fire. If'n the Brits had knowed thet, they dasn't lost the Revulsionary War.

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