Exposure correction device for camera

Details Exposure correction device for camera Exposure correction device for camera

1985-11-18

1987-03-24

Gellner, Michael L.

G03B 724

Patent

active

046521020

ABSTRACT:
An exposure correcting device for use in a camera adapted for use with a film container bearing code indicia representing film speed comprises means for manual setting of film speed; correction setting means for manually setting an exposure correction; means for producing a signal corresponding to the inputs of said manual setting means and said correction setting means; means for selecting either a manual mode for manual film speed setting or an automatic mode for automatic film speed setting; and means for determining the exposure value in case of the manual mode by reading a signal from the signal producing means as a film speed code, or in case of the automatic mode by reading said signal from the signal producing means as an exposure correction value and in response to the film speed information from information reading means and to said exposure correction value.
Thus, when an exposure correction is instructed in the automatic mode, the film speed information from the signal producing means is read as an exposure correction value and the film speed information provided for example on the film is corrected according to said correction value. There is not provided any particular means for generating a signal corresponding to the desired exposure correction, and the signal producing means which is used for setting the film speed in the manual mode is used also for this purpose of setting the exposure correction value.

REFERENCES:
patent: 4579433 (1986-04-01), Ishizaka et al.

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