| 摘要 |
<p>In a motor drive device capable of being coupled to a camera having an automatic exposure control circuit for determining the aperture value and/or the shutter speed during exposure in accordance with the brightness of an object to be photographed, there is provided a delay circuit adapted to start operating upon closing of a main switch for the automatic exposure control circuit and generate a stability signal after the lapse of the time required for the control circuit to become stable in condition after being supplied with power, and means for operating the control circuit upon reception of both the stability signal and a photography signal supplied from a second switch.</p> |
