P-80(П-80) PQ Developer

P-80(П-80) PQ Developer

  1. Nikola Dulgiarov

    Nikola Dulgiarov Member

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    Nikola Dulgiarov submitted a new resource:

    P-80(П-80) PQ Developer - P-80(П-80) PQ Developer

    Read more about this resource...
     
    Last edited by a moderator: Feb 6, 2016
  2. Ian Grant

    Ian Grant Subscriber

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    This is extremely close to Ilford ID-78 and Agfa WA and is a warm-tone developer, and yes it will have a good dish life and capacity.

    Ian
     
  3. CBG

    CBG Member

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    Perhaps you could tell us what dilution, time, temperature you would recommend for using this developer? And maybe you could say what source this formula comes from? I like too have all that information listed together with each formula whenever I can. Thanks!
     
    Last edited by a moderator: Jan 27, 2010
  4. Nikola Dulgiarov

    Nikola Dulgiarov Member

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    Ok, well this formula is for the dilute developer, as in it is ready to use. Moreover, at about 20C, a normal print comes out in 1-2min. It comes from a photography formula book in Bulgarian. According to it, the developer has been(dare I say) developed by a Bulgarian photographer, but as Ian has mentioned above, it's probably a variation of a common formula.However, this one uses sod. bicarbonate, which act as a very good buffer, but one must be careful, as if a too acidic stop may cause bubbles that separate the emulsion from the paper(so I have noticed with old paper).If there's anything else, ask ahead.
    Nikola
     
  5. CBG

    CBG Member

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    Dear Nikoka, Thanks so much for the information on the source and usage of the developer! Could you add what the name of the photographer and the title of the book are?
     
  6. Nikola Dulgiarov

    Nikola Dulgiarov Member

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    The book is a Bulgarian one, called " Фотограгски рецептурен справочик" (Photographic Formulae Reference book) written by Vladislav Kiperov. The developer is acclaimed to have been created by G. Zahariev. One can,apparently, replace the bromide with BZTZ , in order to yield a more neutral, cooler tone.
    Nikola
     
  7. CBG

    CBG Member

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    Thank you so much Nikola!
     
  8. Alienguru

    Alienguru Member

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    yeah, there are many interesting recipes in the Kiperov's book
     
  9. CBG

    CBG Member

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    Care to post some of the most interesting? Thanks!
     
  10. gainer

    gainer Subscriber

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    The usual abbreviation for "gram", which I am sure you meant, is "g", while "gr" is short for grains. Those of us with experience know what you meant, while some without mighr be confused.
     
  11. MFstooges

    MFstooges Member

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    In where I live we use metric and never heard of grain hence gr --> gram
     
  12. PhotoJim

    PhotoJim Member

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    Understandable!

    Metric standard is g (hence mg, kg) so we tend to use g in this part of the world.