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Alan Lewis said:
>This reminded me of a device detailed in the "Stereoscopic Phenomena of light and sight" by Theodore Brown(reprints from Reel-3D). He mentions a stereoscopic table that is a turntable with a protractor attached. By rotating an object 5 deg. you get your stereo pair. He states that the background is perfectly plain and is placed some distance behind the object, and care taken to prevent shadows being cast. A sample photo is included, and it does not suffer any of the unnatural effects. Certainly a plain and shadow free background is essential.
About 15 or 20 years back there were a few papers published in the Journal of Chemical Education using exactly this technique. In these papers the subject matter was usually a 'frame work' model of some molecule having interesting stereochemistry.
Actually, my interest in stereophotography sort of followed my job interest in stereochemistry. My very first free viewing experience was seeing a computer drawn stereo image of sucrose. Now I frequently see stereo drawings in the chemical literature.
Dave huDDle jhuddle@xxxxxxx Westerville, Ohio
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