An endoscope system (100) according to the present invention includes first and second optical receivers (28A, 28B), a tuning unit (81) that sets a pixel as a reading target in each of the first and second optical receivers (28A, 28B) such that pixel information is read alternately from the first and second optical receivers (28A, 28B) and controls timing of exposure processes in the first and second optical receivers (28A, 28B) and timing of reading processes of the pixel information for the first and second optical receivers (28A, 28B) to be correlated with one another, and an assembled cable (31) that transmits the pixel information read from the first and second optical receivers (28A, 28B) in a same transmission path.