Despite the fact that the principles of stereoscopy were established a long time ago, the question of how to present 3D content to a wide audience has always been problematic. Until the arrival of the digital age, 3D projection required two projectors, which had to be perfectly aligned and synchronized. As we have seen in Chapter 2, poor 3D projection quality was the biggest factor in the decline of 3D in the 1920s and again in the 1950s because of the eyestrain and headaches it caused. But then digital projection technology revolutionized the way we capture and view 3D: We are now able to see it live on set and only one digital projector is required for projecting stereoscopic films. A theater with a ...
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