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Two Kodak products
Hi, a friend of mine who is no more printing in darkroom gave me some
cans of kodak D-11 developer and Kodak Unifix fixer. Here are the questions: - does D-11 really give a very high contrast with paper? I do not intend to use it for portraits, but for some more abstract subject. I thought eventually to use a less contrasted paper, i.e. contrast index 3 instead o f 4. Can be a good idea? - the cans of D-11 have an amount of powder to prepare 5 liters of solution. Have I to diluite futher it? - the same for Unifix cans: powder is for 1 liter, have I to diluite? Thanks all. P. |
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Two Kodak products
"piterengel" wrote in message ... Hi, a friend of mine who is no more printing in darkroom gave me some cans of kodak D-11 developer and Kodak Unifix fixer. Here are the questions: - does D-11 really give a very high contrast with paper? I do not intend to use it for portraits, but for some more abstract subject. I thought eventually to use a less contrasted paper, i.e. contrast index 3 instead o f 4. Can be a good idea? - the cans of D-11 have an amount of powder to prepare 5 liters of solution. Have I to diluite futher it? - the same for Unifix cans: powder is for 1 liter, have I to diluite? Thanks all. P. Kodak D-11 is a high contrast developer but not a lithographic developer. It will yeild high contrast on many films and was intended for making line positives and similar work. For maximum contrast use it at full strength, to reduce contrast dilute it 1:1. It will probably give you high contrast with paper but you will have to experiment. The developer must be fairly recent to come in a 5-liter size. As long as the powders are white the developer is OK. If its dark yellow or brown just dump it, its oxidized and not even worth mixing to test. Since this is relatively short lived developer it will probably last longest if stored in separate one liter bottles which can be completely filled and sealed until they are needed. For comparison to other developers here is the formula for D-11. Kodak D-11 Process Developer Water (at 125F or 52C) 500.0 ml Metol 1.0 gram Sodium sulfite, desiccated 75.0 grams Hydroquinone 9.0 grams Sodium carbonate, desiccated 25.0 grams Potassium bromide 5.0 grams Water to make 1.0 liter If sodium carbonate, monohydrated is used the amount to be used is 30.0 grams Note: In nearly all formulas containing Metol the sulfite is mixed before the Metol to prevent its being oxidized. I have checked three sources for this formula and all, including two Kodak formula booklets, give the ingredient list as above. I have no information about Unifix. -- --- Richard Knoppow Los Angeles, CA, USA |
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