Exposure control device for camera

摘要

An exposure control device for a camera, including a shutter drive member for moving from a charged position to a released position upon depression of a shutter release button, and for knocking and opening/shutting a shutter blade in movement. Said exposure control device comprising a stop changeover plate being movable and having a small-diameter opening and a large-diameter opening, a photometric circuit for measuring object brightness, a changeover plate shifter for shifting said stop changeover plate according to a signal from said photometric circuit, a photometric switch for powering said photometric circuit upon depression of said shutter release button, an electromagnetic retainer for retaining said shutter drive member in said charged position until completion of a change of said aperture stop after depression of said shutter release button, and a control circuit for controlling said electromagnetic retainer for causing a delay by time required for said change of said aperture stop upon turning on of said photometric switch, and for decreasing force of retention of said electromagnetic retainer to release said shutter drive member from retention and to allow movement from said charged position to said released position.