| 摘要 |
An electronic still camera is provided with a circuit for generating a charge signal corresponding to an object brightness, within a charge readout area of a solid state image sensor for generating an image signal. The shutter for closing the optical path of an optical system for focussing an object image on the solid state image sensor, is controlled based on the charge signal. Since a signal corresponding to the subject brightness can be correctly formed to control the shutter, a proper exposure can be ensured even if the object to be photographed moves or its brightness changes with time.
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