To synchronize imaging timing at a plurality of imaging devices more accurately.

BT devices 21a, 21b perform communication operation with imaging devices 20a, 20b at the same timing with each other by a synchronous communication system. The BT devices 21a, 21b generate BT synchronization signals sync1a, sync1b on the basis of synchronizing operation timing by the synchronous communication system. TG 23a and TG 23b generate imaging synchronization signals sync2a, sync2b which are synchronized with the BT synchronization signals and have a prescribed cycle. CMOS sensors 24a, 24b operate according to the imaging synchronization signals and perform light exposure, A/D conversion, and data transfer under a desired condition. Camera engines 25a, 25b perform control of the TG 23a and TG 23b and transmission of commands triggered by the BT synchronization signals sync1a, sync1b.