Long before virtual reality, and less digital (and perhaps less nausea-inducing), camera enthusiasts with money could create 3-D panoramas. “The technology was introduced commercially in 1947 by the David White Company of Milwaukee, maker of the Stereo Realist camera, which had two lenses, placed about eye-width apart, to replicate the way the human brain sees three-dimensional space. The camera used slide film, and a special hand-held viewer was required for maximum wow.” – The New York Times