Camera and lens system capable of automatic focusing and manual

Details Camera and lens system capable of automatic focusing and manual Camera and lens system capable of automatic focusing and manual

1988-10-04

1990-06-12

Adams, Russell E.

3541951, G03B 300

Patent

active

049337017

ABSTRACT:
In a camera system capable of automatic focusing and manual focusing, a mode setting signal set by an automatic or manual focusing setting member provided in a lens device is transmitted to a camera and, depending on the mode setting signal, a manual focusing allowance signal is transmitted from the camera to the lens device, wherein the lens device comes into a manual focusing possible state in response to the manual focusing allowance signal from the camera.

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patent: 4780738 (1988-10-01), Futahori et al.
patent: 4790649 (1988-12-01), Harada et al.
patent: 4845521 (1989-07-01), Akashi

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