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Formule per chimici fotografici fai da te

FEINS AMIDOL

 Water (125 degrees F) . . . . . . . . . . . . 750 ml Benzotriazole . . . . . . . . . . . . . . . . . . . . . .8 g Sodium Sulfite (Anhydrous) . . . . . . . . 58.5 g Amidol . . . . . . . . . . . . . . . . . . . . . . . . . 8.8 g Citric Acid . . . . . . . . . . . . . . . . . .... [Prosegue]

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ANSCO 130 (HIGH CONTRAST)

 Water (125 degrees F) . . . . . . . . . . . . . 750 ml Metol . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 g Sodium Sulfite (Anhydrous) . . . . . . . . . 50 g Hydroquinone . . . . . . . . . . . . . . . . . . . . . 11 g Sodium Carbonate (Monohydrate) . . . . . 78 g ... [Prosegue]

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ANSCO 120 (PAPER LOW CONTRAST)

 Water (125 deg. F.) . . . . . . . . . . . . . . . 750.0 ml Metol . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.3 g Sodium Sulfite . . . . . . . . . . . . . . . . . . . . 36.0 g Sodium Carbonate (mono.) . . . . . . . . . . 36.0 g Potassium Bromide . . . . . . . . . . . . ... [Prosegue]

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HYPO CLEARING AGENT

 Water (125º F) . . . . . . . . . . . . . . . . . . . 750 ml Sodium Sulfite . . . . . . . . . . . . . . . . . . . 200 g Sodium bisulfite. . . . . . . . . . . . . . . . . . . . 2 g Water to make . . . . . . . . . . . . . . . . . . . . . 1 liter  Dilute 1:9 for use.

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PYROCATECHIN COMPENSATING

 Stock Solution A Distilled Water (125 degrees F) . . . . . . . 100 ml Sodium Sulfite (anhydrous) . . . . . . . . . . 1.25 g Pyrocatechin . . . . . . . . . . . . . . . . . . . . . . . 8 g Stock Solution B Sodium Hydroxide . . . . . . . . . . . . . . . . . . 1 g Cold Distilled W... [Prosegue]

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AGFA 17 (FINE GRAIN)

 Distilled Water (125 degrees F) . . . . . . . 750 ml Metol . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 g Sodium Sulfite (Anhydrous) . . . . . . . . . . 80 g Hydroquinone . . . . . . . . . . . . . . . . . . . . . 3 g Borax . . . . . . . . . . . . . . . . . . . . . . ... [Prosegue]

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777 FINE GRAIN FORMULA

  Distilled Water (125 degrees F) . . . . . . . 700 ml Metol . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 g Sodium Sulfite (Anhydrous) . . . . . . . . . 70 g Paraphenylene Diamine (base) . . . . . . . 7 g Glycin . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 g Cold Wat... [Prosegue]

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ASCORBIC DEVELOPER FOR PRINT

I first encountered the divided developer concept in the old Dignan Photographic newsletter decades ago Ive been using it ever since I forgot to mention the differences between RC and FB paper Heres what Ive discovered among other things: It doesnt work with all RC papers but does work with all FB papers (with one exception--Polymax--which makes me suspect Kodak is using some plastic in their FB paper) With RC papers it works with pearl surface but not well with glossy surfaces With RC in large areas of black it tendsnot to do very well--you get muddy swirls of gray instead (eg the parts of the paper on a contact sheet where no image is or large expanses of very dark shadow areas) But with all FB papers Ive tried and Ive tried most of them its my preferred way of printing I now almost exclusively use Variable contrast papers mostly Agfa Ilford and Forte I particularly like the way the formula below slightly cools the Ilford warmtone I suspect that the emulsion is so thin in RC papers that it simply cant absorb the developing agents either in sufficient quantity or that something in the plastic makes them not soak up uniformly Ive never had any problems with FB paper [Prosegue]

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ROLLEI FORMULA (GAINER)

Had to share this with the list I tried out a formula for a homebrew film developer that seemed too good to be true Its not Its an incredibly simple vitamin C and phenidone formula that takes almost no time to make is almost free is non-toxic and is giving me the best TMX negs Ive ever gotten from my Rolleis It was given to me by its inventor Patrick Gainer and I encourage absolutely everyone to try it Following is the recipe from Pat and some notes from me: [Prosegue]

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