Patent ID: 8218071

Claim:
A digital camera having a movable mirror provided so as to enter or retract with respect to an optical path of an image pickup optical system for guiding a subject image to an optical viewfinder, comprising: an image pickup element that captures the subject image formed by the image pickup optical system to generate image data; a display portion that displays the image data generated by the image pickup element or image data obtained by subjecting the image data generated by the image pickup element to predetermined processing; a control portion having a live view mode controlling so that the image data generated by the image pickup element or the image data obtained by subjecting the image data generated by the image pickup element to predetermined processing is displayed on the display portion as a moving image in real time; and a voltage detecting portion that detects that a voltage of a battery of the digital camera becomes lower than a predetermined value, wherein, when the voltage detecting portion detects that the voltage of the battery of the digital camera becomes lower than the predetermined value under a condition that the live view mode is set, the control portion controls so that the digital camera comes out of the live view mode and the movable mirror enters the optical path of the image pickup optical system, and after that, the control portion controls so as to stop supply of power from the battery.