| 摘要 |
PROBLEM TO BE SOLVED: To prevent a battery voltage from dropping accompanied with motor operation for driving an exposure control member by driving an actuator for driving the exposure control member by using as a power source a capacitor voltage charged for a power source of a strobe light emission. SOLUTION: A CPU 1 supplies image pickup light to CCD in CCD 4 for an electric charge accumulation time to be set based on brightness of an object detected by AE 2 after having discharged electric charges presently accumulated in the CCD in the CCD 4. When a preset electric charge accumulating time has elapsed, the CPU 1 outputs a pulse to a terminal, and drives a motor coil L12 to close a shutter served also as diaphragm. Then, a voltage charged in a stroboscopic capacitor CST is supplied to the motor coil L12 via a regulator REG 2. Namely, when the motor for driving the shutter served also as diaphragm is driven, no current is made to flow through the motor M from a battery E. Therefore, it is possible to prevent the battery voltage from dropping temporarily.
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