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This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
151:) lens diagram designed by Paul Rudolph for Carl Zeiss in 1890. Redrawn from geometry listed in US Pat 444,714 for Figure 2.
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304:''Protar'' (formerly ''Anastigmat'') lens diagram designed by Paul Rudolph for Carl Zeiss in 1890.
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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