Automatic film sensitivity setting device for cameras

Details Automatic film sensitivity setting device for cameras Automatic film sensitivity setting device for cameras

1986-06-13

1987-04-28

Perkey, William B.

G03B 724

Patent

active

046609490

ABSTRACT:
An automatic film sensitivity setting device for cameras in which film sensitivity indicated in coded form on a loaded film package is automatically read in by electric signal terminals and introduced to an exposure control circuit as a parameter for the calculation and control of exposure, characterized in that the device is arranged to elect a predetermined specific film sensitivity in the absence of valid coded information of film sensitivity on a film case of the package, and in the case of an ordinary film package without the coded information, to elect a predetermined specific film sensitivity in the absence of information in any one of the electric signal terminals.

REFERENCES:
patent: 4431283 (1984-02-01), Hoda et al.
patent: 4437742 (1984-03-01), Taniguchi

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