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  1. #121
    Photo Engineer's Avatar
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    Using a water stop with any process is not really recommended. This is especially true of fast developing papers which can get streaks by using water to stop development.

    I have used 1% and 2% acetic acid and also plain old indicator stop bath. All work.

    PE

  2. #122
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    Wow, you can reverse RA-4? Maybe there *is* hope for all my velvia after all, that doens't involve HDPP or V750/R3000.
    Nothing much to add, I just wanted to type something to remind me to remember this thread. One day when I've got time I'd like to try this...
    An awful lot of electrons were terribly inconvenienced in the making of this post.

    f/64 and be there.

  3. #123
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    Quote Originally Posted by shutterbug101 View Post
    What do you use for stop bath? Do you use normal black and white paper stop or just water?
    Stop bath = 1.5 litres of water and a splash of white vinegar (weak acetic acid). Do not use purchased B&W paper/film stop baths. Water is filtered rain water.
    Cheers - Andy C
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    16mm Cine, 35mm, 120, 5x4 & 7x5.

  4. #124

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    "Wow, you can reverse RA-4?"

    It's fun to play around with. But there tends to be a mottling that is hard to overlook. I have a few ideas I want to try after doing some B&W paper reversal. Ended up getting an identical (appearing) mottling with the B&W paper that I was able to fix. May be related so when I have some time......

    And to make matters worse, I am no chemist.

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