Auto electronic flash unit

Details Auto electronic flash unit Auto electronic flash unit

1979-01-11

1981-06-23

Hix, L. T.

354 60L, G03B 1505

Patent

active

042747236

ABSTRACT:
In conventional flash units it is impossible to photograph at a distance which is out of the range of the auto control distance indicator even though proper exposure may be possible due to the latitude of film and error margin in the guide numbers. With the present invention it is possible to photograph either in or beyond the range of the distance auto control with proper exposure.

REFERENCES:
patent: 4122465 (1978-10-01), Hasagawa et al.

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