French
DeutschFile:Richter-Zeiss Pleon (1938).svg
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Summary
| Description | English: Redrawn from dimensions listed in Figure 2 of US Patent 2,247,068. The Zeiss Pleon was a photographic lens used for aerial surveillance with an equidistant mapping function. A special enlarger was required to remove the distortion captured on the negative. |
| Date | |
| Source | Own work |
| Author | Mliu92 |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:42, 8 November 2018 | | 220 × 140 (2 KB) | Mliu92 | User created page with UploadWizard |
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