11-20-2017, 07:52 AM
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Old BAR
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Join Date: Aug 2006
Posts: 2,279
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The British used this stereo imaging technique during WWII. Intelligence personnel were stationed at Bletchley Park (sp?). The intelligence officer would bend over the reconnaissance photos usually taken by a specially equipped Spitfire. He would examine the photos through special optical glasses to view the image in 3D.
Much easier to discern axis hardware this way.
Allen
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