Apparatus for pre-exposure of photographic film

Details Apparatus for pre-exposure of photographic film Apparatus for pre-exposure of photographic film

1978-10-26

1980-10-14

Gonzales, John

Optics: motion pictures

Miscellaneous

352 46, 352 72, 352 85, 354354, G03B 4100

Patent

active

042277841

ABSTRACT:
A light source, preferably within the camera, exposes film prior to exposure to the scene. The image is enhanced over normal exposure, particularly in photographing shadows and low light levels. Pre-exposure overcomes the reluctance of film chemicals to activation.

REFERENCES:
patent: 2322144 (1943-06-01), Kirschbaum
patent: 2609294 (1952-09-01), Prentice
patent: 4021831 (1977-05-01), Bercher

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