Flash photographing system

Details Flash photographing system Flash photographing system

1983-06-16

1985-01-22

Perkey, William B.

G03B 1505

Patent

active

044948506

ABSTRACT:
The disclosed flash photography system operates in a first mode by controlling the flash on the basis of the distance information signals, and in a second mode by controlling the flash in response to the flash illumination of the object to be photographed. The system insures accurate flash photography by shifting from the first mode to the second mode when the camera uses a lens with a short focal length or with an attached filter.

REFERENCES:
patent: 3438313 (1969-04-01), Topaz
patent: 3710701 (1973-01-01), Takishima et al.
patent: 3823411 (1974-07-01), Hasegawa et al.
patent: 4210849 (1980-07-01), Naya et al.

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