Full range variable proportional fill flash system

Details Full range variable proportional fill flash system Full range variable proportional fill flash system

G - Physics

02

B

95/46.2, 95/53.3

G02B 27/18 (2006.01) G03B 7/16 (2006.01) G03B 21/00 (2006.01) G03B 23/00 (2006.01)

Patent

CA 1169689

FULL RANGE VARIABLE PROPORTIONAL FILL FLASH SYSTEM ABSTRACT OF THE DISCLOSURE A photographic exposure control system of the type for controlling both the duration of a photographic exposure interval and the amount of artificial illumination provided during the exposure interval includes the capability of increasing the amount of artificial illumination in direct corresponding relation with increases in the camera-to-subject distance and the ambient scene light intensity in order to maintain the same proportional contribution to the film exposure from the ambient artificial light during a fill flash exposure.

401960

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