A one source multi use (OSMU)-type stereoscopic camera is disclosed. The stereoscopic camera includes left and right cameras of which lenses are aligned with parallel optical axes, a separation adjustment unit for adjusting the separation between the cameras, a critical parallax computing unit, a camera separation computing unit, and an image storage unit. The critical parallax computing unit adjusts the focus of the stereoscopic camera to an object and determines the far point of an image so that a maximum critical parallax is computed based on a far point limit parallax of a medium-size display. The camera separation computing unit computes the separation between the optical axes based on the computed critical parallax and drives the separation adjustment unit. The image storage unit stores images photographed by the readjusted cameras. Therefore, stereoscopic video made according to the present invention may be viewed on various sizes of displays.