A digital camera capable of accurately detecting flicker even while a video image is displayed on a display device is provided. In a digital camera, a video image is displayed on a display device 40 serving as a viewfinder for photographing based on a display video signal supplied from a CMOS image sensor 120 while image data based on a recording video signal supplied from the CMOS image sensor 120 is recorded in a recording unit 50. The digital camera detects flicker based on a video signal supplied from a group of pixel circuits which do not supply the display video signal among the group of pixel circuits forming the CMOS image sensor 120.