Основная проблема процесса C41 - процесс запатентован, но точная рецептура не опубликована. Как следствие - масса вариаций "на тему". В этой теме я постараюсь собрать воедино те рецепты, которые предназначены для проявки при стандартных для процесса C41 условиях (3мин 15сек, 37.5C).

Отмечу что рецептура без йодистого калия вызывает у меня сильные подозрения. Дело в том что отсутствие (или недостаточное кол-во) йодистого обычно приводит к перепроявлению первого слоя (самого внешнего).

Для начала посмотрим что пишут в патентах ))

US5945266 (Kodak Fliexicolor)
Water 800.0 mL
Potassium Carbonate, anhydrous 34.30 g
Potassium bicarbonate 2.32 g
Sodium sulfite, anhydrous 0.38 g
Sodium metabisulfite 2.96 g
Potassium Iodide 1.20 mg
Sodium Bromide 1.31 g
Diethylenetriaminepentaacetic acid pentasodium salt (40% soln) 8.43 g
Hydroxylamine sulfate 2.41 g
N-(4-amino-3-methylphenyl)-N-ethyl-2-aminoethanol (CD-4) 4.52 g
Water to make 1.0 L
pH 26.7° C. 10.00 +/- 0.05
Develop 3'15" Developer 37.8° C

некоторую информацию по поводу сопоставительного анализа патентованных рецептур проявителей от кодак/фуджи можно найти тут. там же и некоторые вариации "на тему"
http://www.apug.org/forums/forum40/4995 ... per-2.html

Zone V Developer
Water (Room Temp) 800.0ml
Potassium Carbonate 32.0g
Sodium Sulfite 3.5g
Potassium Bromide 1.5g
Hydroxylamine Sulfate 2.0g
CD-4 5.0g
Water to make 1.0L

источник
http://www.bonavolta.ch/hobby/en/photo/ ... micals.htm
http://groups.google.com/group/rec.phot ... fe01d60fd6

формула опубликованная в 'Photo Techniques'

Water 800 ml
Potassium Carbonate 38g
Sodium Sulfite 4.7g
Potassium Bromide 1.5g
Hydroylamine Sulfate 3.9g
CD4 5.9g
Potassium Iodide 1mg
Acetic acid to pH 10.0
Water to make 1 liter

источник
http://www.overtonphoto.com/tech/c41_chemistry.htm
http://groups.google.com/group/rec.phot ... fe01d60fd6

Dignan developer
обнаружено два рецепта проявителя приписываемые Patrick Dignan
первая версия из книги P. Dignan, “The Chemistry of Photography Vol. II (Preston publ.: Niles, IL) 1987, p.24.

This is a reliable formula that produces consistently good results with different brands of C-41 film. Always test the film you wish to process using the MacBeth chart as a guide and evaluate your results carefully.

Water 80-90F 500 ml
Sod. Sulfite anhyd. 4.7 g
Antical #3 1% solution 100 ml
Pot. Carbonate anhyd. 38 g
Pot. Iodide 0.2% soln. 5 ml
Pot. Bromide 1.5 g
Hydroxylamine sulfate (HAS) 3.9 g
CD-4 5.0 g
Water to make 1 liter

Set pH 10.0 @ 80F using sulfuric acid or sod. hydroxide 10% solutions. Raising pH to 10.1 produces somewhat snappier negatives.
Shelf life 1 month for unused developer. At least 1-2 weeks for partially used developer.
Note: Sod. sulfite is identical in action to sod. metabisulfite (cf. D. Neville, SuperBull, #22, p.. If desired, the quantity specified can be adjusted to allow for the difference in molecular weight.

Источник
https://docs.google.com/View?id=dhb94mc ... hxcf&pli=1
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есть и другая версия:

Water 800 mL
Potassium Carbonate 37.5 g
Sodium Sulfite 4.3 g
Potassium Iodide 2 mg
Potassium Bromide 1.5 g
Hydroxylamine Sulfate 2 g
Anti-Cal #3 2.5 g
CD-4 4.8 g
Water to make 1 L
pH 10

источник
http://groups.google.com/group/rec.phot ... fe01d60fd6

Chapman developer

Water 800 mL
Potassium Carbonate 38 g
Sodium Sulfite 4.3 g
Potassium Iodide 1.2 mg
Potassium Bromide 1.3 g
Hydroxylamine Sulfate 2 g
Anti-Cal #3 2-5 g
CD-4 4.8 g
Potassium Hydroxide ~0.5 g
Water to make 1 L
pH 10

источник
http://groups.google.com/group/rec.phot ... fe01d60fd6

вариация Chapman developer

water 800 ml
Calgon 2.5g
Potassium carbonate (anhy) 37.5g
Sodium sulfite (anhy) 4.0g
Sodium bromide 1.3 g
Potassium iodide 1.2 mg (!)
Hydroxylaminsulfate 2.0 g
CD-4 4.5 g
Water to make 1.0 Litre

ph should be around 10.04 - 10.07 to be honest I havn't measured it, this reciept works well the way it is, anyhow with "portrait" films, but normal stuff too.

This is IHMO a quite good Developer composition, I used this for Agfa portrait 160, Agfa vista 100, Konica pro 400 and Kodak VR 100. There are NO remarkable color crossovers or color shifts, the used filter pack for enlarging is similar as it is with commercial chemicals (Tetenal).
Please use a stop bath after developing, NO plain water rinse, as "RPC" remarked, this developer can be a bit contrasty, maybe reduce the ammount of CD-4 down to 4.4 till 4.3 g /L.

источник
http://www.apug.org/forums/viewpost.php?p=624796

The BJP Annual (British Journal of Photography) has for many years had substitute formulae for all sorts of color processing. Here is their C41 formula from the 1984 issue, and as far as I'm aware it was still unaltered in 1994 (the latest issue held in our local library).

Калгон или гексаметофосфат натрия 2г
Сульфит натрия безв. 4,25г
Калий бромистый 1,5г
Калий углекислый 37,5г
Гидроксиламинсульфат 2г
Проявляющее вещество CD-4 4,75г
Вода, л, до 1л
рН=10,1-10,2

время проявления 3мин 15сек при температуре 37,5С

источник
http://www.photoweb.ru/TsepaevColordevelop.htm
http://groups.google.com/group/rec.phot ... fe01d60fd6

Японец тюнинговал рецепт и сравнивал его с коммерческим набором

Sodium sulfite 1.2g
Sodium bicarbonate (sodium bicarbonate) 1.5g
Potassium bromide 0.6g
Sodium carbonate 13g
Sodium hydroxide 0.8g
CD-4 4g
Water 1l

источник
http://translate.googleusercontent.com/ ... kZaq7jJoow

developing solution: "C-27"
stephan4u contributed C-27, a very good approximation to Flexicolor densitometry. “Developed clips were near perfection, high density regions as well as low density regions. Full film speed is reached, with steady going range of contrast.”

800ml tab water
1 ml A905
2g Calgon
34g Potash
1.9g Sodium Bikarbonate
3.5g Sodium Sulphite
1.4 g Potassium bromide
1.4 mg (!) Potassium iodide
2g HAS
5.3g CD4
Up to 1 Litre,
Measured pH is 10.16 at 25 ° C.

источник
http://www.apug.org/forums/forum40/5506 ... r-c41.html

Поташ 38г
Сульфит натрия 5г
Бромистый калий 1,5г
Йодистый калий 0,1% 2мл
Гидроксиламин гидрохлорид 2г
CD-4 5г
Вода 1л

источнки: R.C.Potts "The P.C.S. Darkroom Formulary"