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Thread: Pyrocat HD dilution

  1. #1

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    Pyrocat HD dilution

    Hi,

    I am using Fuji HD-M (X-Ray) 5x7 sheets in my Plaubel Peco Profia.
    My beloved developer is Pyrocat HD.
    In standard dilution (1+1+100) the time for developing is around 6 min.
    But there is not much space for N- developing, what I often need.

    So my thought is to make a dilution of 1+1+200 and take the double time for N developing.

    Has any body experience with this?
    What will be the minimum amount of developer per sheet (it is told to take 50 to 75 ml ready
    for use developer per 4x5 sheet) ?
    When diluted 1+1+200, have I to take 150 ml per 4x5 sheet ?

    Thank you so much in forehand,
    Horst Schmier.

  2. #2
    おせわに なります! Andrew O'Neill's Avatar
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    Re: Pyrocat HD dilution

    With X-ray single and double-sided, I use a very dilute solution of Pyrocat-HD: 5ml + 5ml + 1000ml water. 21C. Tray. One shot, per sheet.

  3. #3

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    Re: Pyrocat HD dilution

    Quote Originally Posted by HorstS View Post
    Hi,

    I am using Fuji HD-M (X-Ray) 5x7 sheets in my Plaubel Peco Profia.
    My beloved developer is Pyrocat HD.
    In standard dilution (1+1+100) the time for developing is around 6 min.
    But there is not much space for N- developing, what I often need.

    So my thought is to make a dilution of 1+1+200 and take the double time for N developing.

    Has any body experience with this?
    What will be the minimum amount of developer per sheet (it is told to take 50 to 75 ml ready
    for use developer per 4x5 sheet) ?
    When diluted 1+1+200, have I to take 150 ml per 4x5 sheet ?

    Thank you so much in forehand,
    Horst Schmier.
    You don't indicate your total volume. All you need to do is double the amount of water and use the total volume for processing. This guarantees sufficient developer so that it will not exhaust prior to developing your film.

  4. #4

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    Re: Pyrocat HD dilution

    Thank you so much for your helpful advises.
    There is a question left : What would you say about developing time when dilution is 1+1+200 .... double time ?

    THX,
    Horst Schmier

  5. #5

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    Re: Pyrocat HD dilution

    I use Formulary Exactol Lux at 1:1:100 for 9min at 75deg F for roll film and 1:1:200 for 13min for sheet film. I would try increasing your time by 50 percent. Please test for yourself before developing anything critical.
    I hope this helps.

  6. #6

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    Re: Pyrocat HD dilution

    Quote Originally Posted by HorstS View Post
    Thank you so much for your helpful advises.
    There is a question left : What would you say about developing time when dilution is 1+1+200 .... double time ?

    THX,
    Horst Schmier
    Probably a little less than double the time. Testing is in order.

  7. #7
    おせわに なります! Andrew O'Neill's Avatar
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    Re: Pyrocat HD dilution

    You won't get any definitive answers, so best to test yourself. The stuff is dirt cheap, too.

  8. #8

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    Re: Pyrocat HD dilution

    Quote Originally Posted by Andrew O'Neill View Post
    With X-ray single and double-sided, I use a very dilute solution of Pyrocat-HD: 5ml + 5ml + 1000ml water. 21C. Tray. One shot, per sheet.
    What sort of agitation Andrew?
    TIA

  9. #9

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    Re: Pyrocat HD dilution

    Thank you so much all,

    testing is on the way.
    Will report then.

    Greetings,
    Horst Schmier

  10. #10

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    Re: Pyrocat HD dilution

    Hi,

    today I have developed two sheets Fuji HD-M in Pyrocat HD (1+1+200), 20 grd C, 12 Min.
    This seems to be a good point to start with.

    Thanks again for all advises.

    Greetings,
    Horst Schmier.

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