Exposure control apparatus

Details Exposure control apparatus Exposure control apparatus

1978-03-30

1979-07-10

Hix, L. T.

354 59, 354 60L, G03B 700

Patent

active

041605888

ABSTRACT:
In an aperture preferred exposure control apparatus for a photographic camera, scene light is received by an exposure time determining photocell and a low light determining photocell. The received light is attenuated at different rates respectively for the two photocells to change the shutter speed at which a low light signal will result as a function of the particular size exposure aperture selected.

REFERENCES:
patent: 3538823 (1970-11-01), Wagner
patent: 3709113 (1973-01-01), Wood
patent: 3824606 (1974-07-01), Yoshiyama
patent: 3860936 (1975-01-01), Harvey

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