1. A digital camera comprising: a photographing unit that takes an image of a subject; a recording unit that records digital image data of the image taken by the photographing unit; and a communication unit that wirelessly transmits/receives data to/from an external device capable of wirelessly transmitting/receiving data, wherein: the communication unit acquires data on the external device related to photographing from the external device in association with the photographing by the photographing unit, and the recording unit records the digital image data in relation to the data on the external device acquired by the communication unit.