Automatic exposure control system with unitary trim

Details Automatic exposure control system with unitary trim Automatic exposure control system with unitary trim

G - Physics

03

B

95/53.3

G03B 7/14 (2006.01) G03B 7/081 (2006.01) G03B 7/091 (2006.01) G03B 7/16 (2006.01) G03B 9/40 (2006.01)

Patent

CA 1061625

Abstract of the Disclosure A photographic exposure control system which automatically functions in an ambient mode of operation, in response to scene light values and in a flash mode of operation, in response to both scene light values and scene ranging, the latter providing select aperture values in accordance with anticipated flash illumination of the scene, includes a trim mechanism providing operator variation of the automatic settings for both the ambient and flash modes of operation. The trim arrangement provides a single control which alters both the photoresponse of the system and the selection of aperture with scene ranging so as to modify only the photo- response for ambient operation and both the photoresponse and the scene ranging response for the flash illumination mode.

242822

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