de Cezar Popescu | oct. 26, 2014 | Acid fixers, BW Formula, Compensating developer, Developers, Fixers, formula, Imperial Dry Plate, manufacturers, Two-bath developers
Developers for plates “Pyro-Soda.” Stock Solution. Metabisulphite of Potass. 50 grs. 10 grms. Pyrogallic Acid 1 oz. 83 grms. Bromide of Potassium 60 grs. 13 grms. Water (boiled or distilled) to 12 oz. 1.000 c.c. No. 1. Stock Solution 3 oz. 150 c.c. Water (boiled or...
de Cezar Popescu | aug. 13, 2014 | BW Formula, Developers, formula, General purpose developers
Use undiluted Ingredient Quantity Mix chemicals in order. Sodium sulfite, desiccated 12.5 grams Glycin 2 grams Potassium carbonate 25 grams Water to make 1 liter Develop medium speed films from 10 to 12 minutes at °20...
de Cezar Popescu | apr. 20, 2012 | Developers, Fine grain developers
An inexpensive fine-grain developer as published in “British Journal Photographic Almanac 1941”. The following is an inexpensive fine-grain developer which is stated never the-less to give very excellent results. Stock solution Ingredient Quantity Mix chemicals in...
de Cezar Popescu | apr. 9, 2012 | Compensating developer, Developers, High contrast developers
This is an exceedingly energetic developer intended for plates which have received minimum exposures. On account of the yellowish colour of the image even very weak negatives may have good printing contrast. Working solutions Ingredient Quantity Mix chemicals in...
de Cezar Popescu | apr. 1, 2012 | Miscellaneous
This developer gives negatives of soft gradation with maximum detail in the shadows. Development is slow, but the speed may be modified by altering the dilution. Stock solution Ingredient Quantity Mix chemicals in order. Metol 3 grams Sodium sulfite crystalline 25...
de Cezar Popescu | apr. 1, 2012 | Compensating developer, Developers
Ilford pyro-soda developer for plates or films. Stock solution Ingredient Quantity Mix chemicals in order. Pyrogallic acid 25 grams Potassium metabisulfite 6 grams Water to make 0.25 liters The potassium metabisulfite should be first dissolved in the water previous to...
