Exposure control device for a camera

Details Exposure control device for a camera Exposure control device for a camera

1986-08-08

1988-10-18

Perkey, W. B.

354422, 354443, G03B 700, G03B 1505

Patent

active

047791152

ABSTRACT:
An exposure control device for flash photography having a first program mode wherein an exposure time is fixed at the flash synchronizable shutter speed and a diaphragm aperture value is changed at a high brightness region according to the brightness of an object to be photographed, and a second program mode or flash photography wherein the diaphragm aperture value and the exposure time within a flash synchronizable shutter speed are changed within a wide range of the brightness of the object to be photographed, and a combination of the diaphragm aperture value and the exposure time gives an exposure predetermined by taking the flash light emission into consideration. The exposure control unit is capable of carrying out the exposure control in the first or second program mode selected by a manually operated mode selecting unit.

REFERENCES:
patent: 4312579 (1982-01-01), Araki
patent: 4320944 (1982-02-01), Nakai et al.
patent: 4352548 (1982-10-01), Toyoda
patent: 4358188 (1982-11-01), Uchidoi et al.
patent: 4497562 (1985-02-01), Ishida
patent: 4550996 (1985-11-01), Taniguchi et ala.
patent: 4558939 (1985-12-01), Taniguchi et al.
patent: 4593987 (1986-06-01), Takahashi et al.
Minolta 7000 Product Guide.

Affiliated with

Also associated with

Rating

Exposure control device for a camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Exposure control device for a camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exposure control device for a camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1197776