| 摘要 |
A digital camera is provided with, a voltage detection unit for a driving power supply, a temperature detection unit which detects an inner temperature and an outer temperature of the apparatus, a power supply detection unit which detects whether the power supply is an AC power supply or a DC power supply (battery), a power-supply condition control unit which makes a determination as to a power-supply state of the apparatus based upon a voltage, a temperature and the kind of the power supply that have been respectively detected by the respective detection and monitoring unit; and a focusing unit which automatically focuses a focus lens system onto a subject, and in this arrangement, the gap of automatic focusing timing is varied by an output from the power-supply condition control unit.
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