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Stereoscopy

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DIGITAL COLLECTIONS About Stereographs A stereograph, also known as a stereogram or stereo view, is a double photograph that appears three-dimensional when viewed through a stereoscope. Scientist Charles Wheatstone invented a reflecting stereoscope in 1838 as a laboratory instrument. Some photographers did use this instrument to exhibit photographs, but it was not until the development of the lenticular stereoscope in 1850 by Sir William Brewster that stereographs became popular. They reached their height of popularity between 1870 and 1890 but continued to be created until as late as 1940. The term "stereograph" is said to have originated with Oliver Wendell Holmes who, in addition to being an author, poet, physician, and lecturer, invented a hand stereoscope in 1859.

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