Electronic flash with calculator

Details Electronic flash with calculator Electronic flash with calculator

1979-04-19

1981-02-17

Truhe, J. V.

354149, 354289, G03B 1503, G03B 1700

Patent

active

042511470

ABSTRACT:
A speed-light, or electronic flash, having a support column provided between its light flashing part and its fitting member to be fitted with an accessory shoe of a camera body, wherein an exposure calculator device operable by a guide number is in cylindrical form so as to surround or enclose the support column.

REFERENCES:
patent: 2967469 (1961-01-01), Lachaize
patent: 4080612 (1978-03-01), Maitani et al.
patent: 4165166 (1979-08-01), Engelsmann et al.

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