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  1. #1
    Digidurst's Avatar
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    Newbie to Amidol - some ?'s

    Hey ya'll How goes it?

    Have any of you tried the Michael & Paula mix from Photographer's Formulary? It comes in 1 & 3 liter kit sizes but considering the shelf life of the stuff is 24 hours at best, I'm thinking I wouldn't want to mix up the whole batch at once. Or is that the way it's supposed to be done?

    Forgive me, I'm new to the Amidol thing so suggestions for dividing would be helpful. Thanks!

    p.s. Here's the mixing directions from PF for mixing 1 liter
    900 ml Distilled water (68°F) Just before use
    30 g Sodium Sulfite
    3 g Citric Acid
    2 ml (10 ml) 10% Potassium Bromide solution
    8 g Amidol
    Distilled water to make 1000 ml

  2. #2
    c6h6o3's Avatar
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    You don't need a kit. Just buy the constituent chemicals from Artcraft Chemicals along with a scale and mix before each use. Mix in the order and quantities you have listed above. Then you needn't worry about shelf life. Michael's Amidol was made in 1903. He's been using the same batch for something like 30 years.

    Some of us have standardized on 3 cc of KBr rather than the 2 cc listed on the M&P website. This warms up the tone a little, especially grade 3.
    Last edited by c6h6o3; 05-10-2005 at 02:16 PM. Click to view previous post history.

  3. #3
    David A. Goldfarb's Avatar
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    I'd also recommend just acquiring the ingredients and mixing it yourself in whatever batch size works for you, since you should mix it right before the developing session, and it doesn't last really to the next day.

    Go to the "Procedures and Formulas" section in the "Azo" are at www.michaelandpaula.com for the formula. I usually mix it for Azo at the beginning of the session, and if I'm planning to do enlargements, I add the requisite amount of KBr and benzotriazole to use it with enlarging paper, just so I can get as much out of each batch as possible.

    Not all papers respond in interesting ways to amidol. Azo and Maco Expo RF (formerly sold in the US under the Cachet label, manufacture by Efke and also sold under their label) are interesting in amidol. Ilford MG IV FB and RC don't do much in amidol that they couldn't do in Dektol. Experiment with whatever paper you use to see if it's worth it.
    flickr--http://www.flickr.com/photos/davidagoldfarb/
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  4. #4
    juan's Avatar
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    I, too, recommend getting the ingredients and mixing them yourself. I frequently mix 1/2 of the recipe you give - simply cutting the amount of each ingredient in half.
    juan

  5. #5
    Silverpixels5's Avatar
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    Quote Originally Posted by David A. Goldfarb
    ...Maco Expo RF (formerly sold in the US under the Cachet label, manufacture by Efke and also sold under their label) are interesting in amidol...

    Sorry for the off topic, but is the J&C Expo paper the same as the Maco and Cachet?
    RL Foley

  6. #6

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    I too would say to purchase from ArtCraft Chemicals the things you need to make the developer yourself, get a cheep little digital scale, and mix away. You are getting ALOT more developer for your money by buying in bulk. Just purchase the smallest ammount of everything that you need from Artcraft, and that will make enought developer to last you several printing sesions in your darkroom.

    Someone suggested to add MORE KBR, but I say DO NOT. It depends on what type of tone you like in your prints. It is recommended to use 2ml of it, but I use an eye dropper and do about 15 drops, which is just abit less then 2ml. If you add even a few more drops to your developer, your prints will come out a funky dirty green color, compaired to a neutral cool color. Its really up to you, I just say experiment.

    Ryan McIntosh

  7. #7

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    Also, what paper are you using? Michael has a different formula for both AZO and enlarging papers. Make sure you use the correct one. The formula you posted above is for AZO.

  8. #8
    David A. Goldfarb's Avatar
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    Quote Originally Posted by Silverpixels5
    Sorry for the off topic, but is the J&C Expo paper the same as this the Maco and Cachet?
    Good question. I think Maco may have stopped distributing it, so I'll need to figure out what it is next time I need to order paper. Cachet no longer distributes Maco in the US.
    flickr--http://www.flickr.com/photos/davidagoldfarb/
    Photography (not as up to date as the flickr site)--http://www.davidagoldfarb.com/photo
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  9. #9
    Digidurst's Avatar
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    Quote Originally Posted by RyanMcIntoshPhoto
    Also, what paper are you using? Michael has a different formula for both AZO and enlarging papers. Make sure you use the correct one. The formula you posted above is for AZO.

    Yup - that's what I'm getting ready to experiment with

    p.s. What is 'KBR'

    (I told you guys I had no clue about this stuff so don't start throwing odd abbreviations my way or I might accidently blow up the house or something)

  10. #10
    David A. Goldfarb's Avatar
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    K=potassium
    Br=bromide
    flickr--http://www.flickr.com/photos/davidagoldfarb/
    Photography (not as up to date as the flickr site)--http://www.davidagoldfarb.com/photo
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