Abstract: To provide a high speed photographic device which can display in real time a synchronous image photographed in synchronization with motion of a photographic subject. The high speed photographic device (1), which displays in real time a photography image which is in synchronization with a motion cycle of the photographic subject TG, includes: a synchronous cycle adjustment unit (22) which is for designating a synchronous cycle Tsync; a camera (11) which photographs the photographic subject TG at a photography cycle Tshot that is 1/N as long as the synchronous cycle Tsync; and a display unit (14) which displays in real time the photographic subject TG by displaying the photography image of every synchronous cycle Tsync every display cycle Tdisp. The synchronous cycle adjustment unit (22) can adjust the synchronous cycle Tsync at a step width ?Tsync smaller than a visual minimum cycle, within an adjustment range which does not include less than the visual minimum cycle.