film developer bpg-15/25

Discussion in 'B&W: Film, Paper, Chemistry' started by Quinine, Nov 27, 2004.

  1. Quinine

    Quinine Member

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    hi,
    i want to let you to take a look at this recipe i developed in the last couple of weeks. it gives very fine grain and good tonality/sharpness on all my negatives. any feedback is welcome. :smile:

    bpg-15/25

    a)
    75.0 ml water
    1.5 g sodium sulfit
    1.5 g pyrocatechin
    0.15 g phenidon
    0.15 g potassium bromide
    add water to 100 ml

    b)
    200.0 ml water
    2.5 g sodium sulfit
    25.0 g potassium carbonat
    2.5 g glycin
    2.5 ml triethanolamin
    add water to 250 ml

    use dilution 2 + 5 + 93, turn tank first minute and then 3 times/minute

    fp4+ (iso 80) : 7:30 minutes
    neopan 400 (iso 400) : 15:00 minutes

    more films are to follow. :smile:

    best regards & nice weekend!

    --- jan.
     
  2. psvensson

    psvensson Member

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    Jan, it's an unusual formula in that it has three developing agents. Could you explain your reasoning? Also, does it stain the negative?
     
  3. Quinine

    Quinine Member

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    hi,

    this formula was inspired by fx 11 (which also contains 3 dev agents) and and pyrocat hd. i tried to get best of both worlds.

    this formulas seems to get most of it, so i think it will produce very good results even for push-processing. and yes, it gives some stain.

    i'm trying to get some more results today evening. i'll keep you posted.

    best regards, --- jan.