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Summary
| Description |
English: Macro lens design by Sho Tokumaru (1983) for Minolta, redrawn from embodiment 1 of patent JPS59228220A. The patent describes a "dual floating" element system; the three illustrated lens groups I, II, and III move at slightly different rates during focusing to maintain performance at close ranges. |
| Date | |
| Source | Own work |
| Author | Mliu92 |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:44, 13 August 2024 | | 75 × 100 (3 KB) | Mliu92 | Uploaded own work with UploadWizard |
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