Exposure meter for photographic cameras

Details Exposure meter for photographic cameras Exposure meter for photographic cameras

1974-12-03

1976-04-27

Hayes, Monroe H.

Optics: motion pictures

With automatic diaphragm control

G03B 708

Patent

active

039531163

ABSTRACT:
An exposure control arrangement for motion picture cameras of the type in which the diaphragm is set in accordance with the amount of light passing through the objective is described. The activation of the diaphragm is automatically effected by photoelectric means which are energized upon closure of the shutter and disabled during exposure of the film.

REFERENCES:
patent: 3421812 (1969-01-01), Kubota

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