JP 2025-58577 A EXAMPLE 1 — COSINA / SHIBATA
| 9 ELEMENTS / 8 GROUPS |
| f ≈ 48.5 mm |
| F/1.23 |
| 2ω ≈ 32.6° |
| ALL SPHERICAL |
Unit focusing (entire optical assembly extends toward object).
| Element | Type | Glass |
|---|---|---|
| L11 | Positive Meniscus | S-LAL18 (OHARA) |
| L12 | Positive Meniscus | S-LAL18 (OHARA) |
| L13 | Positive Meniscus | S-LAL18 (OHARA) |
| L14 | Negative Meniscus | S-TIH14 (OHARA) |
| L15 | Negative Meniscus | S-TIH18 (OHARA) |
| L21 | Negative Meniscus | S-NPH1 (OHARA) |
| L22 | Biconvex Positive | TAFD37A (HOYA) |
| L31 | Biconvex Positive | TAFD37A (HOYA) |
| L32 | Negative Meniscus | E-ADF50 (HOYA) |
Detailed analysis available in the interactive viewer above.