When an interchangeable lens in which a memory that records image data is provided is mounted to a camera main body including a display section that displays an image, a signal processing and control section of the camera main body reads in a sample image that is previously stored in the memory. The sample image serves as a model with respect to an image that can be photographed by the interchangeable lens. The sample image is displayed by the display section for a predetermined time. Thereafter, the signal processing and control section performs display control that switches the display of the display section so as to display an image in which a subject is picked up by the interchangeable lens and the image pickup section.