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 | mart. 14, 2012 | Developers, General purpose developers
Positive developer. When a brown-tone developer of this type is used, it does not mean that brown tones will be produced on any paper; not all papers are suitable for brown tones. This developer should be used for those papers which are especially designed to produce...
de Cezar Popescu | mart. 14, 2012 | Developers, General purpose developers
This positive developer is suitable (or all papers, which are intended to give warm-black tones, e.g., chamois contact paper (gas-light), portrait contact and enlarging papers (chloro-bromide). Focal paper developer for warm-black tones, working solution Ingredient...
de Cezar Popescu | mart. 14, 2012 | Developers, General purpose developers
Energetic positive developer giving vigorous results. Producing pure black to blue-black tones on chloride paper, and pure black tones on bromide enlarging paper. Focal paper developer for blue-black tones, working solution Ingredient Quantity Mix chemicals in order....
de Cezar Popescu | mart. 13, 2012 | Developers, General purpose developers
An inexpensive and generally useful positive developer for both printing and enlarging papers. The formula is of good service when the photographer desires one developer to suffice for all purposes, thus avoiding the preparation of a special formula for each type of...
de Cezar Popescu | feb. 6, 2012 | Developers, General purpose developers, Tropical developers
As a negative and positive developer, amidol enjoys a certain popularity on account of its freedom from fog, good tonal reproduction and universal use, as well as its capacity for producing a deep velvety black on bromide papers. Focal Amidol universal developer,...
