File:Bertele US2730016A (Biogon 120-deg, 1952).svg
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Summary
| Description |
English: "Wide angle objective" patented by Ludwig Bertele in 1952. Claimed 120-degree angle of view; dimensions redrawn from geometry listed in US Pat. 2,730,016. |
| Date | |
| Source | Own work |
| Author | Mliu92 |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:20, 3 April 2023 | | 250 × 200 (3 KB) | Mliu92 | Uploaded own work with UploadWizard |
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