Film magazine having an identity mark for identifying sensitivit

Details Film magazine having an identity mark for identifying sensitivit Film magazine having an identity mark for identifying sensitivit

1979-07-20

1982-01-05

Hix, L. T.

354 49, 354 51, G03B 1724

Patent

active

043090885

ABSTRACT:
A film magazine is provided with a peripheral surface carrying at least one photoelectrically discriminatable strip-like mark indicative of the sensitivity of film contained within the magazine, and a photographic camera having a shutter operating circuit automatically adjustable in accordance with the sensitivity of photographic film contained within such a film magazine inserted into the camera includes photoelectric discriminating means located in the camera for discriminatably reading the at least one strip-like mark on the film magazine when placed in the magazine chamber.

REFERENCES:
patent: 3492927 (1970-02-01), Thiele et al.
patent: 3602117 (1971-08-01), Eagle et al.
patent: 4024557 (1977-05-01), Aoyama et al.

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