Camera having automatic focusing system

Details Camera having automatic focusing system Camera having automatic focusing system

1997-10-28

1999-03-02

Perkey, W. B.

Photography

With exposure objective focusing means, focusing aid, or...

Lens characteristic compensating

396 95, G03B 1336

Patent

active

058782893

ABSTRACT:
A camera having an automatic focusing system includes a focus detector in a camera body to which a photographing lens can be detachably mounted for detecting a focus state for an object image formed by the photographing lens mounted to the camera body. A lens driver in the camera body drives a focusing lens group of the photographing lens to a focal position in accordance with the deflected focus state. A controller in the camera body drives the focusing lens group at a moving-object prediction mode, taking into account a movement of an image surface of the object when the object is a moving object. A memory in the photographing lens stores lens data used to either permit or prohibit an operation at the moving-object prediction mode. The controller determines whether to permit or prohibit the operation at the moving-object prediction mode in accordance with the lens data rear from the memory of the photographing lens.

REFERENCES:
patent: 5739856 (1998-04-01), Watanabe
patent: 5765071 (1998-06-01), Watanabe

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