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appeared as early as the 1870s in a design by Achille Victor Emile Daubresse. In 1897 Moritz Hensoldt began marketing pentaprism based roof prism binoculars.

Most roof prism binoculars use either the Schmidt-Pechan prism (invented in 1899) or the Abbe-Koenig prism (named after Ernst Karl Abbe and Albert König and

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