An endoscope according to an aspect of the invention includes an image pickup connector portion (233) projecting from one end side (26f) of an endoscope connector (25) and connected to a first electrical contact (341) of a video processor (34), and a magnification change connector portion (213) projecting from the other end side (26s) of the endoscope connector (25) opposite to the one end side (26f) and connected to a second electrical contact (442) of a magnification control device (40).