Photography – With exposure objective focusing means – focusing aid – or... – Plural focusing or rangefinding areas
Patent
1997-12-10
1999-07-27
Adams, Russell
Photography
With exposure objective focusing means, focusing aid, or...
Plural focusing or rangefinding areas
396 51, 396123, G03B 310
Patent
active
059305339
ABSTRACT:
The present invention provides a camera having a focus detecting device for independently detecting each of focus conditions in plural regions of a screen by use of an area sensor. More particularly, the invention provides a camera having a focus detecting device provided with a first mode for setting a first number as a number of focus detection areas and a second mode for setting a second number, smaller than the first number, of areas except for predetermined areas in the focus detection areas in the first mode, as focus detection areas, and arranged to allow selection of the first and second modes, thereby permitting a changeover of the number of focus detection areas according to a photographer's will.
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Adams Russell
Canon Kabushiki Kaisha
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