Exposure value setting device for a camera

Details Exposure value setting device for a camera Exposure value setting device for a camera

1992-05-12

1993-09-14

Gellner, Michael L.

G03B 7097

Patent

active

052453790

ABSTRACT:
A camera system including interchangeable lenses each having a switch to control many functions provided to the camera system. By simply operating one lens switch, the working mode of auto-focusing (AF) functions of the camera system can be changed: single-spot AF/multi-spot AF modes, one-shot AF/continuous AF modes, and focus-locing
on-locking modes. When used with an IC card also attached to the camera body, the lens switch can further control the functions of the camera system added or selected by the IC card.

REFERENCES:
patent: 4837596 (1989-06-01), Kawamura
patent: 4855779 (1989-08-01), Ishikawa et al.
patent: 4974011 (1990-11-01), Azuma et al.
patent: 4994844 (1991-02-01), Azuma et al.
"Canon EOS 620.650", by Canon, Inc., pp. 30-35; 42-43 (1987).

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