1994-11-03
1996-07-09
Perkey, W. B.
354471, G03B 1336, G03B 1718
Patent
active
055349650
ABSTRACT:
When a preparation for photography signal is input from a release switch assembly without said photography command signal being input therefrom, the brightness of an object to be photographed is measured and an exposure value is calculated therefrom, the focus adjustment state of the photographic lens is detected, and these values are displayed. At the time point when this display operation has been completed, if and only if the preparation for photography signal is still being input from the release switch assembly, focus adjustment of the photographic lens is performed based upon the detected focus adjustment state. Further, when the photography command signal is input from the release switch assembly without any substantial time lapse after the preparation for photography signal is input therefrom, the brightness of the object to be photographed is measured and an exposure value is calculated therefrom, the focus adjustment state of the photographic lens is detected, thereafter focus adjustment of the photographic lens is performed, and thereafter exposure of the film is performed according to the exposure value.
REFERENCES:
patent: 5235380 (1993-08-01), Yamada et al.
patent: 5305045 (1994-04-01), Terada
Higaki Riichi
Iida Yoshikazu
Ohtani Tadashi
Tsukahara Daiki
Tsuru Hiroyuki
Nikon Corporation
Perkey W. B.
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