Photometric device for pseudo format camera

Details Photometric device for pseudo format camera Photometric device for pseudo format camera

1988-05-19

1989-08-08

Perkey, W. B.

G03B 708

Patent

active

048557803

ABSTRACT:
A photometric device for a pseudo format camera capable of performing trimming photography includes, a trimming data setting unit which sets trimming data. A light-receiving unit consists of a plurality of light-receiving portions for splitting an objective field into a plurality of regions and obtaining luminance data of the plurality of regions. An arithmetic unit calculates a photometric value using the plurality of luminance data. The computing unit includes a correction circuit for substantially correcting luminance data of only a specific region in accordance with trimming data from the trimming data setting unit.

REFERENCES:
patent: 3091162 (1963-05-01), Stinson
patent: 3450016 (1969-06-01), Yamada
patent: 3529523 (1970-09-01), Haskell
patent: 3762286 (1973-10-01), Hasegawa
patent: 4306787 (1981-12-01), Fukuhara et al.
patent: 4395099 (1983-07-01), Terasita
patent: 4445778 (1984-05-01), Nakauchi
patent: 4534639 (1985-08-01), Konishi et al.
patent: 4636054 (1987-01-01), Saegusa
patent: 4639111 (1987-01-01), Harvey
patent: 4774401 (1988-09-01), Yamada et al.

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