Photography – Having variable focal length of camera objective – Having focus operation
Patent
1997-01-21
1998-09-29
Perkey, W. B.
Photography
Having variable focal length of camera objective
Having focus operation
396 84, 396377, 396149, G03B 1314
Patent
active
058157468
ABSTRACT:
An apparatus, such as a camera, comprises a computing device which computes a parallax correction signal for correcting a parallax of a viewfinder on the basis of a focusing distance and a focal length of an image forming optical system, and a driving device which drives the viewfinder on the basis of the parallax correction signal provided by the computing device.
REFERENCES:
patent: 5216457 (1993-06-01), Yamaguchi et al.
patent: 5604563 (1997-02-01), Nonaka
Canon Kabushiki Kaisha
Perkey W. B.
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