Fogging in photography is the deterioration in the quality of the image caused either by extraneous light or the effects of a processing chemical. Photography is the process of making pictures by means of the action of light. ... A chemical substance is any material substance used in or obtained by a process in chemistry: A chemical compound is a substance consisting of two or more chemical elements that are chemically combined in fixed proportions. ...
Light fogging
Light fogging can occur to the film in the camera because of a defect in the manufacture or use of the camera and is seen as dark areas in the negative which tend to occur over the full width of the film including the margins. A camera is a device used to take pictures (usually photographs), either singly or in sequence, with or without sound recording, such as with video cameras. ... Film refers to the celluloid media on which movies are printed. ...
Light fogging on a print usually only occurs because of poor control of lighting in the darkroom and is seen as an overall dark veil across the print or, occasionally, as unintended solarisation. A darkroom is a given space, usually a separate area in a building or a vehicle, that is made dark so as to allow photographers to use light-sensitive materials to develop photographs and film. ... Solarisation is a phenomenon in photography in which the image recorded on a negative or on a photographic print is wholly or partially reversed in tone. ...
Chemical fogging
Chemical fogging occurs at the processing stage when old or spent chemicals are used, chemicals are used in the wrong sequence, inadequate washing between processing stages or inappropriate chemicals are used. Because of the wide range of cause, the effects can be diverse ranging from coloured streaks and blotches through to the lack of an image or a totally black image. The most common cause is the use of old or spent chemistry which often results in a lack of contrast and an undesirable background colour - usually brown. It has been suggested that this article or section be merged with photographic developer. ...
It has been suggested that this article or section be merged with photographic developer. ... Photography is the process of making pictures by means of the action of light. ...
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