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  1. #11
    Dave Krueger's Avatar
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    The opening post was about Beers which is a paper developer.

    Perceptol, as discussed by Barry Thornton becomes an accutance developer at 1:3 dilution which apparently brings the sulfite concentration down to some magical level at which it supposedly no longer acts as a solvent. Just for the record, I tried it because of that recommendation and did not see the effect that he was referring to, but my testing was very limited and hardly conclusive of anything. I could find the quote out of his book, but not tonight. Too tired.

  2. #12
    Sparky's Avatar
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    right. that makes sense to me - well at least the high dilution part. I didn't know there was any relationship with sulfite concentration. I assumed they were independent of eachother - that you could have somewhat mushy grain but still have high acutance. I've used high dilution perceptol for years and years and years and was always very pleased with the effects. I think I was using a much higher dilution that 1+3 though. It makes for hellishly long dev times - but the result is well worth it!

  3. #13

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    Quote Originally Posted by Dave Krueger View Post
    The opening post was about Beers which is a paper developer.
    Minus the bromide it is a film developer of the Beutler type.
    Comparatively a little low on sulfite and carbonate. Dan

  4. #14
    Dave Krueger's Avatar
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    Quote Originally Posted by dancqu View Post
    Quote Originally Posted by Dave Krueger
    The opening post was about Beers which is a paper developer.
    Minus the bromide it is a film developer of the Beutler type.
    Comparatively a little low on sulfite and carbonate. Dan
    My apologies. I'm easily confused.

  5. #15

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    Quote Originally Posted by Dave Krueger View Post
    My apologies. I'm easily confused.
    Not at all confused. Beer's A, Ansco 120 and
    likely a few other Paper developers along with
    Beutler's, FX-1, Mason's and likely a few other
    Film developers are all carbonated metol,
    sulfite, developers. Dan

  6. #16
    Sparky's Avatar
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    Quote Originally Posted by Dave Krueger View Post
    The opening post was about Beers which is a paper developer.
    Just wanted to clarify here. Beers maybe a paper dev but that doesn't mean one can't use it on film. It wasn't clear to me whether the OP was using for paper or film. HOWEVER there seemed to be very little doubt he was talking about film based on this quote:

    "It occurred to that very low sulfite levels produce sharper images ON FILM. Have I left mushy grained prints behind with that very low
    sulfite brew?"

    I take his suggesting the sulfite levels producing sharper images 'on film' to mean that it's the FILM that was unsharp. I doubt one would ever have that problem with paper for reasons others have brought up.

  7. #17

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    I Assumed.

    Quote Originally Posted by Sparky View Post
    Beers maybe a paper dev but that doesn't mean one
    can't use it on film. It wasn't clear to me whether the
    OP was using for paper or film.

    "It occurred to that very low sulfite levels produce sharper
    images ON FILM. Have I left mushy grained prints behind
    with that very low sulfite brew?"

    I take his suggesting the sulfite levels producing sharper
    images 'on film' to mean that it's the FILM that was unsharp.
    I doubt one would ever have that problem with paper for
    reasons others have brought up.
    Yes Beer's is a print developer which when used very
    dilute is of the Beutler's type but lower in sulfite and
    carbonate. I was speaking of a very low sulfite
    Beer's used very dilute as a Print developer
    and the Prints' resulting grain.

    The Beer's components ratios are 1:3:3, metol, sulfite,
    carbonate. Multiply by 8 for a full liter of stock strength.
    Add a small amount of bromide if the Paper tends to fog.
    Ansco 120 is a same and Selectol Soft a similar developer.

    The altered brew has component ratios of 1:1:4. I upped
    the carbonate in order to speed the development
    of Emaks paper. So far inconclusive although
    1 part carbonate won't do at all. Dan

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