Patent
1977-12-05
1979-09-11
Hix, L. T.
354 38, G03B 708
Patent
active
041673131
ABSTRACT:
A focal plane shutter camera of a type which employs photometry measuring light reflected by the shutter blind and/or the film has an electromagnetic diaphragm mechanism and is capable of automatic photographing with a preset exposure. By providing at least two light receiving elements which perform the photometry of reflected light to automatically determine an exposure value, the camera may select among four photographing modes including a manual photographing, an automatic photographing with a preset diaphragm aperture, an automatic photographing with a preset exposure period and an automatic programmed photographing operation.
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Hix L. T,.
Olympus Optical Co,. Ltd.
Perkey Willliam B.
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