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Sepia toning is a specialized treatment to give a black-and-white photographic print a warmer tone and to enhance its archival qualities. The metallic silver in the print is converted to a sulfide compound, which is much more resistant to the effects of environmental pollutants such as atmospheric sulfur compounds.
Kodak have ceased production of their Kodak BW400CN film. It is also possible to develop a standard black and white silver gelatine film or print using specially formulated chromogenic developers so that a colored dye image only remains after processing, the silver image being totally or partially bleached away during processing. [1]
Black and white negative processing is the chemical means by which photographic film and 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.
The mail order service offers black-and-white film processing and silver gelatin printing from film or from digital files. The launch saw the introduction of a dedicated website The service has continued to expand offering medium and large format processing and digital black and white Lightjet prints.
Unlike some color reversal processes (such as Kodachrome K-14) that produce positive transparencies, E-6 processing can be performed by individual users with the same equipment that is used for processing black and white negative film or C-41 color negative film. The process is highly sensitive to temperature variations: a heated water bath is ...
Lenticular (additive): a black-and-white film which has been embossed on its base side with hundreds or thousands of tiny lenses is used for the original photography, base side forward and in conjunction with a segmented multicolored filter on the camera lens. As in mosaic processes, the result is an array of adjacent microscopic black-and ...
Agfacolor. Ap-41 process (pre-1978 Agfa color slides; 1978-1983 was a transition period when Agfa slowly changed their color slide films from AP-41 to E6); Anthotype; Autochrome Lumière, 1903
Even where black-and-white positives are currently used, the process to create them typically uses an internegative with standard processing instead of a chemical reversal process. Black-and-white reversal films are less common than color reversal films. Agfa-Gevaert discontinued its Agfa Scala 200x Professional black-and-white reversal film ...