Endoscopic system includes: image pick-up device 14, for the object inside captured image, with the two or more digital signals of output, electro-optical conversion part 27, 14 for exporting two or more digital signals from photographic device are converted into optical signal, with output optical signalling, optics transmitting portion 5a, it includes two or more optics transmission members, suitable for sending, concurrently, pass through two or more optics transmission members, the optical signal of two or more outputs is from electro-optical conversion part 27 and exports selector 26, between be provided with photographic device 14, the part 27 of electro-optical conversion, and it can combine, and it exports to 1 light transmission component, multiple digital signal, it is supplied to two or more optics transmission members, light transmitting portion 5a is transported through based on transmission state data optical.
