To provide a bus constitution suitable for efficiently establishing flow of internal data in an electronic camera.

This electronic camera is constituted of image pickup means (12-14, 31) for generating image data by picking up an object, a first bus (16) from which the image data generated by the image pickup means are outputted, a plurality of image data converting means (33, 35) for fetching the image data through the first bus, and for processing the image data by sharing it, a second bus (18) from which the image data processed through the plurality of image data converting means are outputted, a recording/reproducing means (19) for image recording and image reproduction to a storage means (22) connected to the second bus so as to be freely attachable and detachable, a third bus (39) for fetching the image data from the first bus side at the time of image recording, and for fetching the image data from the second bus side at the time of image reproduction, and a monitor display part (41) for monitor- displaying the image data on the third bus.