A color stereoscopic of three-dimensional picture system which is fully compatible with unaided two-dimensional viewing. A filter divides the lens aperture stop into left and right halves, and lets mutually exclusive portions of the spectrum pass through each half, preferably red left, and blue-green right. When viewed with glasses consisting of identical filters over the corresponding eye, psychophysiological illusion of 3-D is created.
THREE-DIMENSIONAL COLOR PHOTOGRAPHIC PROCESS, APPARATUS AND PRODUCT