Stereoscopic device, including a first image detector and a second image detector, a first entrance pupil, receiving a first image of an object, a second entrance pupil, receiving a second image the object, a directional image separator, receiving the first and second images from the respective first and second entrance pupils, a common optical imaging assembly, located between the entrance pupil and the directional image separator, conveying the images from the respective entrance pupils to the directional image separator, providing the first image to the directional image separator in a first source direction, and providing the second image to the directional image separator in a second source direction, wherein the directional image separator includes a directionally selective surface, the directionally selective surface reflecting the first image in a first target direction, towards the first image detector, and transmitting the second image in a second target direction, towards the second image detector, and wherein the first image and the second image are at least partially overlapping, when arriving at the directionally selective surface.