Exposure control

Details Exposure control Exposure control

1987-12-28

1988-11-15

Perkey, W. B.

G03B 7097

Patent

active

047853239

ABSTRACT:
An exposure control is disclosed for controlling the amount of light admitted to a light-responsive medium in photographic apparatus such as a camera. The control is adapted to generate a plurality of shutter-aperture options in response to measurements of subject distance and ambient light. The exposure control contains a means for selecting one of the options to produce a suitable exposure. In order to maximize the overall picture quality, the exposure control comprises means for selecting the shutter-aperture option with the optimum depth of field to blur diameter ratio.

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