ABOUT STEREO. Stan provided a short introduction to both the Stereo technique and the two shows.
Stereo images have had periods of popularity over the years. The last big peak in interest was in the 1950s and 60s. Three inventions led to this peak interest:
1. The Polaroid polarizing filters created by Edwin Land in the 1930s provided the means to project two full colour stereo images while keeping them separate.
2. Kodachrome colour, first offered in 1935 by Kodak, gave us fine grain 35mm colour slides which could be combined to make stereo pairs suitable for projection.
3. The Stereo Realist Camera, invented by Seton Rochwite and manufactured in 1947 by the David White Company, a firm known for its precision surveying instruments.
The first two set the stage, and when the Realist was announced, after a very negative marketing survey, it triggered a new interest in stereo that lasted over twenty years. By the 1970s, interest fell off again to be kept alive by a small group of enthusiasts including the Photographic Society of America.