Apparatus for testing automatic electronic flash

Details Apparatus for testing automatic electronic flash Apparatus for testing automatic electronic flash

1983-01-03

1984-02-07

Gellner, Michael L.

35412711, G03B 1505

Patent

active

044299710

ABSTRACT:
An apparatus for testing an automatic electronic flash is used with the combination of a single lens reflex camera of TTL direct photometry type and a TTL automatic electronic flash. The apparatus includes a test switch which is connected in parallel with a synchro contact contained in the camera for initiating the emission of flashlight and which is closed to test the emission of flashlight from a flash discharge tube. In this manner, by closing the test switch, the emission of flashlight from the electronic flash can be tested and the amount of illumination controlled by an exposure control circuit contained in the camera, without operating a shutter.

REFERENCES:
patent: 4016575 (1977-04-01), Uchiyama et al.

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