File:Bertele-Zeiss Biogon (1951, f4.5).svg
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Summary
| Description |
English: Lens design patented by Ludwig Bertele, later sold as Zeiss Biogon. Redrawn from geometry listed in figure 2 (f/4.5 version) of US Patent 2,721,499. |
| Date | |
| Source | Own work |
| Author | Mliu92 |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:56, 8 November 2018 | | 2,000 × 1,100 (3 KB) | Mliu92 | User created page with UploadWizard |
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