The present invention provides a camera system, which can simplify an ordering procedure. An IC memory comprising a contactless interface is mounted on a camera, or an image recording medium, such as memory card or film. In a case where a customer has carried the camera to a photo lab, image data is read out of the memory card or is acquired by reading the developed film, by an image data acquisition component. Moreover, individual information, order information, account information, and the like, are read out of the IC memory over wireless communication by a reader and writer and are affixed to the image data, whereupon the resulting image data is stored in a database.