Photographic camera with film speed setting system

Details Photographic camera with film speed setting system Photographic camera with film speed setting system

1977-10-12

1980-04-29

Gellner, Michael L.

354 37, 354 58, 354217, 354 51, 354149, 354 31, 354 60E, 354289, 354268, G03B 708, G03B 1736, G03B 1503, G03B 1718, G03B 1738

Patent

active

042003717

ABSTRACT:
A manually operable or automatic film speed setting system adapted for use in an electronic exposure control apparatus of a photographic camera. When a film cartridge having an electrically conductive marker representative of the sensitivity of film therein is loaded in the camera, information representative of film speed is automatically introduced into the exposure value computer regardless of the manually switched position of the inherent film speed dial different from that for the sensitivity of the used film.

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patent: 4024557 (1977-05-01), Aoyama et al.
patent: 4053908 (1977-10-01), Saito et al.
patent: 4074286 (1978-02-01), Suzuki
patent: 4074287 (1978-02-01), Iwata
patent: 4077042 (1978-02-01), Imura et al.

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