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STEREOSCOPIC 3D
HOW 3D WORKS
Lenny Lipton
Cinema, since its inception in 1895, has been three dimensional: three dimensional in the sense that there have been depth cues that can be appreciated by a person with only one eye. Movies have been based on a one-eye view of the world as captured by a one-lensed camera. But the medium has depth cues that produce a 3D picture. And filmmakers have learned how to control the 3D effect by means of lens focal length, lighting, additions of fog or mist to the background, a moving camera, and other techniques. But the stereoscopic cinema works only for people with two normally functioning eyes.
It is important to recognize that the cinema has always been three dimensional because the new 3D cinema ...
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