JP 2026-121744 A — Nozomu Mishima
| 6 ELEMENTS / 4 GROUPS |
| 35mm f/3.5 (35.741mm f/3.58 design) |
| 2ω = 61.5° (61.6° marketed) |
| 2 ASPHERICAL SURFACES |
| UNIT FOCUS |
Unit focus. The 0.7 m endpoint is a mechanism-constrained reconstruction from Cosina's image-plane-referenced minimum focus; D11 changes from 15.11 mm to 17.166711 mm while every internal spacing remains fixed.
| Element | Type | Glass |
|---|---|---|
| L9f | Biconvex Positive | TAFD35 (HOYA catalog equivalent; production supplier unspecified) |
| L9r | Biconcave Negative | FD225 (HOYA catalog equivalent; production supplier unspecified) |
| L10f | Biconcave Negative | S-NBM51 catalog equivalent (patent 613443; production supplier unspecified) |
| L10r | Biconvex Positive | TAFD30 (HOYA catalog equivalent; production supplier unspecified) |
| L11 | Biconvex Positive | FCD1 (HOYA catalog equivalent; production supplier unspecified) |
| L12 | Negative Meniscus (2× Asph) | S-BSL7 / K-BK7 catalog-equivalent borosilicate crown class (production supplier unspecified) |