An imaging apparatus to which a plurality of accessory apparatuses are attachable includes a camera communicator configured to provide a communication path with each of the plurality of accessory apparatuses, and a camera controller configured to communicate with the plurality of accessory apparatuses via the camera communicator. The camera controller transmits a first request to the plurality of accessory apparatuses, receives first information corresponding to whether or not to stop a communication with the imaging apparatus from each of the plurality of accessory apparatuses that have received the first request, and controls a communication with each of the plurality of accessory apparatuses according to the first information.