Camera system

Details Camera system Camera system

1996-07-08

1998-08-25

Adams, Russell E.

Photography

With object illumination for exposure

Exposure control circuit with illumination mode

396242, 396243, G03B 708

Patent

active

057992150

ABSTRACT:
A camera system comprises a brightness measuring circuit, a exposure line choosing circuit, an operable switch, a film driver and a film driving mode selector. The brightness measuring circuit measures brightness of a photographic scene to send a brightness value. The exposure line choosing circuit chooses one of a plurality of exposure lines in which each lines selects a combination of an aperture value and a shutter speed value at each brightness value. The film driver drives a film in either of a first mode in which the film is wound only one frame in response to the operation of the operable switch and a second mode in which the film is wound frame by frame continuously as long as the operable member is operated. The film driving mode selector selects one of the modes in accordance with the exposure line chosen by the choosing circuit.
In the camera system, a photographer may only select the exposure mode in accordance with his intention and purpose in photography, and then the film driving mode corresponding to the intention and purpose is automatically selected.

REFERENCES:
patent: 4182556 (1980-01-01), Tano et al.
patent: 4530585 (1985-07-01), Kanai
patent: 4779115 (1988-10-01), Fujino et al.
patent: 5170205 (1992-12-01), Satoh et al.
patent: 5223884 (1993-06-01), Katoh et al.
patent: 5504552 (1996-04-01), Katoh et al.

Affiliated with

Also associated with

Rating

Camera system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Camera system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Camera system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-46083