US 6,445,511 B1 EXAMPLE 3 — FUJI PHOTO OPTICAL / KITAHARA
| 10 ELEMENTS / 6 GROUPS |
| f ≈ 210.0 mm |
| F/4.0 |
| 2ω ≈ 19.0° |
| ALL SPHERICAL |
Inner focus — cemented doublet G2 (L5+L6) translates axially; 13.6 mm travel, infinity to 1.8 m.
| Element | Type | Glass |
|---|---|---|
| L1 | Biconvex Positive | S-FSL5 (OHARA) |
| L2 | Biconvex Positive | S-FPL51 (OHARA) / FCD1 (HOYA) |
| L3 | Biconcave Negative | S-NBH5 (OHARA) |
| L4 | Negative Meniscus | E-FL5 (HOYA) |
| L5 | Biconvex Positive | S-TIH6 (OHARA) |
| L6 | Biconcave Negative | S-LAH59 (OHARA) |
| L7 | Biconcave Negative | SF1 (Schott) |
| L8 | Biconvex Positive | S-LAH65 (OHARA) |
| L9 | Negative Meniscus | S-TIH6 (OHARA) |
| L10 | Biconvex Positive | S-TIH3 (OHARA) |
Detailed analysis available in the interactive viewer above.