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Photography

Formula

This solution is suitable for treatment of exposed films previous to development, to permit increased darkroom illumination and greater safety for film inspection during development.   Pinakryptol Green 1 g Water to make 500 ml   Note – Use of a 50/50 water-alcohol mixture for solution will improve the keeping qualities of the desensitizer.   [...]

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Ansco 332 Chromium Intensifier thumbnail

This formula is recommended because it is convenient in use and gives permanent results. The degree and character of intensification can be controlled to an extent by modification of the developing time used for the redeveloper.   Potassium Bichromate 9 g Hydrochloric Acid 6 ml Water to make 1 L   Immerse negatives in this [...]

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Formula

This reducer is useful for lessening the density and contrast of heavy negatives.   Solution 1 Ferricyanide 35 g Potassium Bromide 10 g Water to make 1 L   Bleach in Solution 1 and after through washing, redevelop to desired density and contrast in Ansco 47 or other negative developer except fine-grain developers. Then fix [...]

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Ansco 310 Farmer’s Reducer

Formula

This is a cutting reducer for lessening the density of heavy negatives and at the same time increasing their contrast. It is especially valuable for reproduction films to clear the whites.   Solution 1 Sodium Thiosulfate 240 g Water to make 1 L   Solution 2 Ferricyanide 19 g Water to make 250 ml   [...]

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Formula

This formula produces rich green tones by combining the effects of iron blue toning and sulfide sepai toning. It must, however, be employed carefully and with particular attention both to the directions outlined below and to cleanliness in handling prints throughtout all steps of the process. The formula is not adaptable to all types of [...]

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Formula

Producing brilliant blue tones, this formula is suitable for use with Cykora, Brovira and Indiatone Papers.   Hot Water (125F or 52C) 500 ml Ferric Ammonium Citrate 8 g Ferricyanide 8 g Acetic Acid (28%) 265 ml Water to make 1 L   Solution should be prepared with distilled water if possible. If enameled iron [...]

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Formula

This formula gives a range of red tones to sepia-toned prints, the brilliance of the tone depending on the paper used. Brilliant chalk-red tones are produced on Cykon and India tone, while with Cykora darker shades are formed. If desired, deep blue tones may also be obtaned with this formula by using black-and-white prints instead [...]

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Formula

With this toner it is possible to obtain a variety of pleasing brown tones by varying the time of toning. Prints may be removed from teh bath when the desired color is reached. This formula is suitable for use with Cykora, Indiatone, Cykon and Convira.   Solution 1 Hot Water (125F or 52C) 4 L [...]

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