Camera

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Details

354159, 354 94, G03B 1310, G03B 1702, G03B 3700

Patent

active

054103819

ABSTRACT:
A camera having a finder, capable of photographing a first size and a second size, comprises a field frame for the first size, which is provided in front of an eye piece of said finder, and a field frame plate for the second size, which is provided in a manner to be movable between an objective lens and the eye piece of said finder and is formed with display portions for displaying portions other than a field frame and shielding portions. A field frame plate change-over mechanism retracts the field frame plate for the second size out of the optical path of the finder during the photographing of the first size, and disposes the field frame for the second size in the optical path of the finder between the objective lens and the eye piece during the photographing of the second size. This field frame plate shields the field frame for the first size by shielding portions of the field frame plate for the second size. The field frame for the first size comprises marks extending along two opposite sides of a field of view of the finder. The field frame plate comprises a frame that covers these marks when the field frame plate is in the optical path of the finder during the photographing of the second size. The field frame for the second size comprises marks that extend along the same two opposite sides of the field of view of the finder and that are spaced from each other and from the portions of the field frame plate that cover the field frame for the first size.

REFERENCES:
patent: Re32797 (1988-12-01), Harvey
patent: 4697901 (1987-10-01), Wakabayashi et al.
patent: 4773997 (1990-11-01), Harvey
patent: 5252790 (1993-11-01), Tanaka
patent: 5257055 (1993-10-01), Cho et al.

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