In a digital camera in which a photographic field is photographed and which has an image pick-up device 102 for outputting an image signal corresponding to a photographic field, an analog signal processing circuit 106 for processing the image signal, a digital signal processing circuit 108 and an image data processing section 110, a detachable memory card 112 for storing so that the image information processed by the processing means can be read out, and a CPU 111 for controlling an operation of each section, the digital camera has a program by which the ID information previously stored in the memory card 112 is read out, and stored in a digital camera main body side.