A digital camera of the present invention allows a lens unit to be attachable/detachable with respect thereto. The digital camera of the present invention includes a plurality of display portions and a control portion. When a mode for displaying an image on a first display portion among the plurality of display portions is set, the control portion causes the digital camera to come out of the mode and causes the display portion to display the setting information of the digital camera in accordance with an operation of the setting manipulation portion. Further, when a battery cover is opened, the control portion stops a display operation in the display portion. Further, when a voltage of a battery accommodated in a battery accommodating portion becomes lower than a predetermined value, the control portion selects a predetermined display portion to perform a warning display and turns off a power source after an elapse of a predetermined time. When the lens unit attached to the digital camera is removed, the control portion performs a warning display with respect to the display portion. Further, while the display portion displays a real-time image, when a terminal from an external apparatus is connected to an output terminal, the control portion causes image data stored in a storage portion to be output to the external apparatus through the output terminal.