A camera includes: an image-capturing unit that captures an image of a subject to acquire image data; an image storing unit that stores a plurality of image data acquired by the image-capturing unit in a storage medium; an image specifying unit that specifies image data designated by a user from among the plurality of image data stored in the storage medium; and a transmission controlling unit that when transmitting the plurality of image data to an external device using a wireless communication device, identifies specified image data specified by the image specifying unit and non-specified image data that are not specified by the image specifying unit from each other and transmits the specified image data to the external device in priority to the non-specified image data.