1985-09-04
1986-07-08
Adams, Russell E.
354410, 3542891, G03B 700
Patent
active
045989869
ABSTRACT:
An apparatus for exposure correction is provided for use with a camera of automatic exposure control type. An amount of exposure which is determined on the basis of an output from photometric means is shifted by a given correction value toward overexposure or underexposure in response to the operation of a manual operating member. The correction value can be varied either automatically or manually. The correction value can be changed by automatically reading information given on a film or a film container and representing a film latitude, by manually supplying a film latitude value, or by utilizing information representing a film speed which has a correlation with a film latitude. In this manner, a photograph having an improved gradation can be obtained by effectively utilizing a film latitude.
REFERENCES:
patent: 3762285 (1973-10-01), Tenkumo
patent: 4286849 (1981-09-01), Uchidoi et al.
patent: 4309089 (1982-01-01), Harvey
patent: 4320944 (1982-03-01), Nakai
patent: 4329029 (1982-05-01), Haskel
patent: 4483601 (1984-11-01), Sekida et al.
Kawazoe Mitsuo
Kodama Takashi
Miyasaka Tetsuo
Nagao Masaki
Shiratori Kazutoshi
Adams Russell E.
Olympus Optical Co,. Ltd.
Weinstein Louis
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