Camera capable of metering light transmitting through a viewfind

Details Camera capable of metering light transmitting through a viewfind Camera capable of metering light transmitting through a viewfind

1996-11-22

1998-02-10

Metjahic, Safet

Photography

Having photocell at specific position within camera

Having means for changing the photocell field of view

396268, 396271, G03B 7099

Patent

active

057179662

ABSTRACT:
Camera capable of indicating set photographic field by masking an area out of the photographic field nearby an image forming plane within a visual field of a viewfinder or lowering transmittance of the area in accordance with a change of photography format such as from an ordinary shot to a panoramic shot. The camera includes light-receiving elements for photometry which output a signal in response to amount of light transmitted through the image forming plane within an optical path of the viewfinder, a correcting circuit for correcting the element output in response to the set photographic field, and a photometry circuit for calculating a photometric value.

REFERENCES:
patent: Re32797 (1988-12-01), Harvey
patent: 4509848 (1985-04-01), Katsuma et al.
patent: 4534639 (1985-08-01), Konishi et al.
patent: 4544256 (1985-10-01), Momiyama et al.
patent: 4855780 (1989-08-01), Hayakawa
patent: 4943825 (1990-07-01), Taniguchi et al.
patent: 5258803 (1993-11-01), Hayakawa

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