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  1. #61
    PeterB's Avatar
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    On 17 August 2010 07:17, Richard Knoppow wrote:


    "It was suggested by Micheal Gudzinowicz, a Phd chemist who used to frequent the pure-silver list:

    To one liter of water add
    2.5ml of Photo Flo 200 (half the recommended amount).
    30ml of 70% isopropanol (rubbing alcohol).
    Soak the film in this mixture for a minute or two and hang up to dry without squeegeeing.

    The amounts are not critical and stronger alcohol can be used. Make sure the rubbing alchol you get is just isopropanol and water, not ethyl alcohol, which will be denatured with a solvent, or "flavored" rubbing alcohol with oil of wintergreen or something else in it."

  2. #62
    RalphLambrecht's Avatar
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    Quote Originally Posted by PeterB View Post
    On 17 August 2010 07:17, Richard Knoppow wrote:


    "It was suggested by Micheal Gudzinowicz, a Phd chemist who used to frequent the pure-silver list:

    To one liter of water add
    2.5ml of Photo Flo 200 (half the recommended amount).
    30ml of 70% isopropanol (rubbing alcohol).
    Soak the film in this mixture for a minute or two and hang up to dry without squeegeeing.

    The amounts are not critical and stronger alcohol can be used. Make sure the rubbing alchol you get is just isopropanol and water, not ethyl alcohol, which will be denatured with a solvent, or "flavored" rubbing alcohol with oil of wintergreen or something else in it."
    i use this suggestion since 1839without having any issues.
    Regards

    Ralph W. Lambrecht
    www.darkroomagic.comrorrlambrec@ymail.com[/URL]
    www.waybeyondmonochrome.com

  3. #63
    MattKing's Avatar
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    Quote Originally Posted by RalphLambrecht View Post
    i use this suggestion since 1839without having any issues.
    Ralph - you are a lot older than you look!
    Matt

    “Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”

    Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2

  4. #64
    fotch's Avatar
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    Quote Originally Posted by RalphLambrecht View Post
    i use this suggestion since 1839without having any issues.
    You look so young, how do you do it?
    Items for sale or trade at www.Camera35.com

  5. #65

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    I never measure. I just pour a few drops, shake and end of story.

    But even the streaks are no big deal if/when they occur. A light whipe with a micro cloth takes care of the problem beautifuly.

  6. #66
    RalphLambrecht's Avatar
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    Quote Originally Posted by fotch View Post
    You look so young, how do you do it?
    must be the fixer fumes
    keep brearthing also helps
    Regards

    Ralph W. Lambrecht
    www.darkroomagic.comrorrlambrec@ymail.com[/URL]
    www.waybeyondmonochrome.com

  7. #67
    RalphLambrecht's Avatar
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    that's more like 1,00:1 isn' it?
    Regards

    Ralph W. Lambrecht
    www.darkroomagic.comrorrlambrec@ymail.com[/URL]
    www.waybeyondmonochrome.com

  8. #68
    RalphLambrecht's Avatar
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    only rocks and fossils re older than me
    Regards

    Ralph W. Lambrecht
    www.darkroomagic.comrorrlambrec@ymail.com[/URL]
    www.waybeyondmonochrome.com

  9. #69
    Greg Davis's Avatar
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    5 ml to 1 liter of water is 1:200, so 2.5 ml to 1 liter is 1:400.
    www.gregorytdavis.com

    Did millions of people suddenly disappear? This may have an answer.

    "No one knows that day or hour, not even the angels in heaven, nor the Son, but only the Father." -Matthew 24:36

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