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  1. #1

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    Update on Pyro Plus Paper Developer

    I have recently made the following adjustments to the Pyro Plus Paper Developer. Please let me know how this works for you if you decide to try it.

    750 ml water

    30 grams sodium sulfite

    .34 grams of phenidone A in 20 ml of 91 % alcohol heated to appr. 125 degrees to dissolve

    10 grams catechol

    10 grams pyrogallol

    40 grams of sodium carbonate

    3 1/2 grams of potassium bromide

    5 grams of citric acid

    water to make 1 liter

    (add chemicals in order specified and make sure that each is fully dissolved before adding the subsequent chemical.)

    Developer is used as formulated. I have found, in my experience, that this equals of exceeds my results with Amidol on enlarging paper with a substantial savings in formula cost. I have not tried this with water bath because I am able to reach desired contrast with filter changes.

  2. #2

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    Quote Originally Posted by craigclu
    Donald,

    Could you give us your impression of results you're getting? Warmth, speed, etc?
    Craig,

    My results with Oriental VCFB indicate a slight warming of the tone with the amount of KBR indicated.

    It does not classify as a warm tone developer a very nice deep black with a hint of brown to the black. The formulation would cool down with a reduction of the KBR.

    The print tone emergence time on a properly exposed print runs about 18 to 25 seconds with Oriental. By comparison, I have found that Dektol or Zone VI developer the tone will emerge at about 50-55 seconds.

    Hopefully Lee Carmichael will weigh in on this too. He has had experience with the developer on Azo.

    Alex Hawley has used a variation of this developer in split developing with Neutal WA and Pyro Plus Paper Developer on Azo. I have not seen his prints using this combination but reports that I have heard are that they are very fine.

    Hope that this helps. Good luck if you decide to give it a try.

  3. #3
    craigclu's Avatar
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    Donald,

    Could you give us your impression of results you're getting? Warmth, speed, etc?
    Craig Schroeder

  4. #4
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    Thank you Donald.
    RL Foley

  5. #5
    Alex Hawley's Avatar
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    Quote Originally Posted by Donald Miller
    Alex Hawley has used a variation of this developer in split developing with AGFA Neutol WA and Pyro Plus Paper Developer on Azo. I have not seen his prints using this combination but reports that I have heard are that they are very fine.
    Thanks Don. Yes, I have obtained very good results on Azo with a split bath of Neutol WA and PPPD. I cannot distinguish between Azo prints developed in Amidol and those developed in the split bath method. I have sold several prints to fellow APUG members and they have reported back the same finding, Lee Carmichael and Mateo being most prominent in my mind.

    The variation I use is the original formula with the following changes: 15 grams of catechol, no pyrogallol as Don suggested in his original post; I use 3-5 mal of standard 10% Kbar solution instead of 3 grams Kbar.

    The developing technique starts off with Neutol WA for about 30 seconds, then to a waterbath for 10 to 45 seconds depending on paper grade and contrast level desired. Then into the PAD for 60 seconds. Credit is due to Francisco Cicolli for this developing technique.

    Now the great question is what to do since AGFA is discontinuing its products. I probably have enough to get through most of this year so that gives me some time to determine something. Maybe ANSCO 130?

    With enlarging paper, I have followed the straight original PAD formula. With both enlarging papers and Azo, I see a 1/2 to 1 stop increase in paper speed over other developers including Smith's Amidol formulae. This is nice on a slow enlarging paper like J&C/Forte warmtone. On Azo, I have to reduce the exposure time by about a half stop.

    Don, I'm very satisfied with the original formula and have no compelling reason to change from it at this time. I will try the new formulation as soon as time permits, maybe first on some enlargements. What changes are you seeing over the original formula?
    Semper Fi & God Bless America
    My Photography Blog

  6. #6

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    Quote Originally Posted by Alex Hawley
    The developing technique starts off with Neutol WA for about 30 seconds, then to a waterbath for 10 to 45 seconds depending on paper grade and contrast level desired. Then into the PAD for 60 seconds. Credit is due to Francisco Cicolli for this developing technique.

    Now the great question is what to do since AGFA is discontinuing its products. I probably have enough to get through most of this year so that gives me some time to determine something. Maybe ANSCO 130?
    Hi Alex, You can replace the Neutol WA with Ilford ID-78 and obtain excellent results. You can find the ID-78 Recipe in the Apug Chemical Recipes section.
    Tom Hoskinson
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    Everything is analog - even digital :D

  7. #7

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    Quote Originally Posted by Tom Hoskinson
    Hi Alex, You can replace the Neutol WA with Ilford ID-78 and obtain excellent results. You can find the ID-78 Recipe in the Apug Chemical Recipes section.
    I second that suggestion. I use my ID-78 with twice the amount of sulfite the recipee asks for, and dillute it 1:3. It lasts forever with replentishment.

  8. #8
    Silverpixels5's Avatar
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    Quote Originally Posted by Alex Hawley

    Now the great question is what to do since AGFA is discontinuing its products. I probably have enough to get through most of this year so that gives me some time to determine something. Maybe ANSCO 130?
    Alex

    If you try Ansco 130, I suggest using the adams version w/o the HQ. At least in my results, i've found that 130 is a lot more controllable w/o the HQ in split developing. Although if you're using the PPPD w/o the Pyro my advice is probably null and void.
    RL Foley

  9. #9

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    Quote Originally Posted by Alex Hawley
    Now the great question is what to do since AGFA is discontinuing its products.
    As I posted elsewhere, A&O Group, the German company that purchased AgfaPhoto's minilab and chemical business, has said that it will continue to manufacture and distribute Neutol WA along with Rodinal and other black and white chemicals.

  10. #10
    Alex Hawley's Avatar
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    WOW, you guys are awesome! Thanks for all the tips in such quick succession.
    Semper Fi & God Bless America
    My Photography Blog

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