Density produced on a negative, print or trannie by chemical processing or accidental exposure to light, caused by 1. exposure to non image-forming light (possibly: opening the camera back in daylight), 2. too much handling in air during the development process, 3. over-developed, 4. outdated film or paper, or 5. storage of film or paper in a hot, humid place. (see Outdated & Over development)
Produces an overall veil of density on a negative or print, which does not form part of the image. It can be achieved by chemicals or exposing the sensitive material to light.
Darkening or discoloring of a negative or print or lightening or discoloring of a slide caused by exposure to nonimage-forming light to which the photographic material is sensitive, too much handling in air during development, over-development, outdated film or paper, or storage of film or paper in a hot, humid place.
The generation of unwanted non-image density in non-reversal photographic materials or unwanted loss of image density in reversal photographic materials. This may be caused by exposure to radiation or chemicals, by aging, or by excessive or unwanted reactions during processing.
A tone caused by ambient light. Overage photographic materials often manifest fogging.
Fogging in photography is the deterioration in the quality of the image caused either by extraneous light or the effects of a processing chemical.