Electronic flash photographic device

Details Electronic flash photographic device Electronic flash photographic device

1982-12-29

1985-09-17

Hix, L. T.

354416, 354458, 354459, G03B 7097

Patent

active

045417032

ABSTRACT:
In an automatic electronic flash device of the computer type for a camera, information on the F-number of full aperture of a lens mounted on the camera is transmitted to the flash device and, in the case where the full aperture F-number of the lens is larger than a predetermined full aperture F-number, the light control level of the flash device is changed according to the full aperture F-number of the lens.

REFERENCES:
patent: 4078242 (1978-03-01), Uchiyama et al.
patent: 4200370 (1980-04-01), Aizawa et al.
patent: 4230402 (1980-10-01), Uchiyama et al.
patent: 4319814 (1982-03-01), Iura et al.
patent: 4327978 (1982-05-01), Ishida et al.
patent: 4345827 (1982-08-01), Stemme et al.
patent: 4349260 (1982-09-01), Ishida et al.
patent: 4465353 (1984-08-01), Yoshida et al.

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