PURPOSE: To resolve a fear that a film is left unphotographed or a power source voltage is wasted and a motor is worn down, by correcting a prescribed time related to the change of a driving mode or warning with power source voltage information of the motor.

CONSTITUTION: When a release button is pressed in to the first stage, information of a prescribed time T2 attained by correcting a reference time Tm with digital conversion information Tv of a power source voltage VB and digital conversion information Tt of a temperature sensor is outputted to a T2 memory. When a one-frame supply signal Sf is not inputted through the clock count of a counter reaches contents of the T2 memory, a control circuit stops the output of a motor normal rotation signal and outputs a motor reverse rotating signal or/ and a warning signal. The motor reverse rotation signal reverses the motor to rewind the film, and the warning signal reports it with a buzzer or a warning lamp that the film is not wound normally or rewound.