JP 2004-302170 A — Kazunori Ohno
| 9 ELEMENTS / 9 GROUPS |
| f ≈ 118.7 mm |
| F/4.0 |
| 2ω ≈ 32.8° |
| ALL SPHERICAL |
Front-group unit focus (L1–L6 translate forward, rear group fixed). Infinity to 1:1.
| Element | Type | Glass |
|---|---|---|
| L1 | Equi-Biconvex Positive | S-TIH14 (OHARA catalog equivalent; production supplier unspecified) |
| L2 | Biconcave Negative | S-BAH28 (OHARA) |
| L3 | Equi-Biconvex Positive | LAC14 (HOYA) |
| L4 | Biconcave Negative | E-FD5 (HOYA) |
| L5 | Positive Meniscus, Convex to Image | S-LAH66 (OHARA) |
| L6 | Biconvex Positive | FC5 (HOYA) |
| L7 | Equi-Biconvex Positive | S-TIH6 (OHARA) |
| L8 | Biconcave Negative | S-LAH63 (OHARA coordinate match) |
| L9 | Positive Meniscus, Convex to Object | FC5 (HOYA) |