Does bleach work with rapid fixer?

Discussion in 'B&W: Film, Paper, Chemistry' started by Jon Shiu, Nov 20, 2004.

  1. Jon Shiu

    Jon Shiu Subscriber

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    Hi, I want to use some pot. ferricyanide to bleach in combination with fixer. Plain hypo (sodium thiosulfate) is recommended. Was wondering if Ilford rapid fix would work, since I don't have plain hypo right now? I plan on mixing a small amount and using a brush.

    Jon
     
  2. Jorge

    Jorge Inactive

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    Yes it does, it what I use, but it does exhaust the ferri faster.
     
  3. philldresser

    philldresser Subscriber

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    Guys

    Excuse my simple question but what is the benefit of mixing bleach and fix?

    Phill
     
  4. Jorge

    Jorge Inactive

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    Two different reactions. If you bleach with ferri only, you can redevelop the print/negative, if you bleach with ferri/fix you completely remove the silver and the process is irreversible. Also the action is faster.
     
  5. Jon Shiu

    Jon Shiu Subscriber

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    I think with fix added may be less prone to yellow staining also.
     
  6. philldresser

    philldresser Subscriber

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    Jorge

    Apols for the 'basic' question, but my knowledge of this practice is non-existent as I have never played with bleach. So I was even unaware you could re-develop. I assume then with fixer you need to be 'very' careful not to over do it. Interestingly I have a print from last weeks EM10 trials that requires a highlight sparkle.

    Thats what I love about analogue :smile: I think I will try some pot ferri if I can find some.

    Phill
     
  7. Jorge

    Jorge Inactive

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    No apology needed Phil....good luck with the bleaching.
     
  8. Jon Shiu

    Jon Shiu Subscriber

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    Thanks for your help Jorge. Will give it a try.

    Jon
     
  9. hortense

    hortense Member

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    I use 24ml 17% hypo, 24ml water, and 1/8 tsp KFcyanide. Vary the later to regulate how fast you want the bleach to work. Keep as stream of water immediately below the area you are bleaching. Periodically run water over bleach area. Every few minutes, immerse in fixer for 1-minute before return to bleaching. Bruce Barnbaum's book, "The Art of Photography", has a complete discussion on this - and, it is a very good book for photographer to have in their library.
     
  10. philldresser

    philldresser Subscriber

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    Excellent, I ordered a copy last week and its winging its way to me as I write :smile:

    Thanks to all for the info and to Jon for the thread

    Phill
     
  11. photomc

    photomc Member

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    I concur, this and a couple of Tim Rudmons books are must have for anyone interested in photography.

    How does the process compare to Farmers? I mixed some Farmers up that was 'old' and it really does not really do much at all..how fast should it react?
     
  12. Jon Shiu

    Jon Shiu Subscriber

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    Hi Mike, John Sexton recommends mixing Farmers at 4x strength, ie mix each of A and B so that they are 1/4 volume of recommended. Then, mix a small amounts of A with B to bleach. It is supposed to last only 15min before losing strength, but we have found it lasts longer.