Exposure calculation device for camera

Details Exposure calculation device for camera Exposure calculation device for camera

1993-08-11

1995-07-18

Adams, Russell E.

3542891, G03B 708

Patent

active

054346401

ABSTRACT:
The exposure calculation device for camera comprises a first photometric means which performs photometry on the photographic field divided into a plurality of regions and a second photometric means for which by comparison with the first photometric means the separation number is lower and which excels at low luminance photometric performance, and a calculation means which calculates an exposure value in a comparatively high luminance situation by dominantly using the output of the first photometric means and in a comparatively low illumination situation by dominantly using the output of the second photometric means; and it is possible to obtain an accurate exposure value, even in a special environment such as a high temperature situation or low luminance or the like.

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patent: 4985726 (1991-01-01), Fujibayashi et al.
patent: 5012268 (1991-04-01), Hirai

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