Flash photographic exposure control system

Details Flash photographic exposure control system Flash photographic exposure control system

1986-02-19

1987-06-02

Adams, Russell E.

354421, 35419511, G03B 7085, G03B 716, G03B 724

Patent

active

046698507

ABSTRACT:
An exposure control system for daylight and flash photography. In the flash mode with computer flash light device, the system accommodates for a variation in the otherwise fixed parameter of diaphragm aperture by taking into account the camera-to-subject distance. In one embodiment of the invention, the diaphragm value and the integrated flash light are varied with distance at equal rates to each other, reaching the maximum possible values simultaneously at a distance twice as long as that when the diaphragm is fixed. In another embodiment, these variables are increased one at a time, reaching the maximum value, after which the other is increased to effect an equivalent result.

REFERENCES:
patent: 4005444 (1977-01-01), Uchiyama et al.
patent: 4068245 (1978-01-01), Ohtaki et al.
patent: 4187019 (1980-02-01), Uchiyama et al.

Affiliated with

Also associated with

Rating

Flash photographic exposure control 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 Flash photographic exposure control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flash photographic exposure control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-609551