fogged film fault


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fogged film fault

[fogd]
Etymology: Dan, spray + AS, filmen, membrane; L, fallere, to deceive
a defect in a photograph or radiograph that appears as a foggy area. It is usually caused by stray light or radiation, use of expired film, or an unsafe darkroom light. See also artifact.

ar·ti·fact

, artefact (ahr'ti-fakt)
Anything, especially in a histologic specimen or a graphic record or x-ray, caused by the technique used that does not reflect the original specimen or experiment.
[L. ars, art, + facio, pp. factus, to make]