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(Book) All about formulae for your darkroom (1942) Selenium, indirect sulphide toning, red chalk, blue and green tones (pp. 44–47) (Book) Kodak Chemicals and Formulae (1949) Selenium, sulphide-selenium and other toners (pp. 39–41) Ilford: Toning prints; Sepia toning in a developing tray. Digital "toning":
A darkroom tray, also known as print developing tray, is used in photography. A dental impression tray is a receptacle or device that is used to carry impression material to the mouth, confine the material in apposition to the surfaces to be recorded, and control the impression material while it sets to form the impression.
Stop bath is an acidic solution used for processing black-and-white photographic films, plates, and paper. It is used to neutralize the alkaline developer, thus halting development. [1] Stop bath is commonly a 2% dilution of acetic acid in water, though a 2.5% solution of potassium or sodium metabisulfite works just as well. [1]
Typically three trays are used containing either developer, stop bath, or fixer, in that order. The print must then be rinsed in water to removed the fixer. Photographic fixer is a mixture of chemicals used in the final step in the photographic processing of film or paper.
Photographic processing or photographic development is the chemical means by which photographic film or paper is treated after photographic exposure to produce a negative or positive image. Photographic processing transforms the latent image into a visible image, makes this permanent and renders it insensitive to light. [1]
A developing tank allows photographic film to be developed in a daylight environment. This is necessary because most film is panchromatic and therefore can not be exposed to any light during processing. [2] Depending upon the size and type, a developing tank can hold one to many roll or sheet films. Famous brands include Paterson, Yankee, Jobo ...
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