US 2018/0100988 A1 Example 1 — FUJIFILM / Kondo
| 14 ELEMENTS / 9 GROUPS |
| f ≈ 108.5 mm |
| F/2 |
| 2ω ≈ 29.8° |
| ALL SPHERICAL — 4 ED ELEMENTS |
Inner focus — only G2 (L21+L22 cemented doublet) translates toward image. G1, G3, and aperture stop fixed. Linear motor (LM) drive.
| Element | Type | Glass |
|---|---|---|
| L11 | Positive Meniscus | TAFD45 (HOYA; S-LAH98 equivalent) |
| L12 | Biconvex Positive | FCD705 (HOYA) |
| L13 | Plano-Negative | S-TIL26 (OHARA, 567/428 high-index barium glass) |
| L14 | Positive Meniscus | H-ZLaF68L (NHG) |
| L15 | Plano-Negative | S-TIM27 (OHARA) |
| L16 | Plano-Convex Positive | FCD705 (HOYA) |
| L21 | Positive Meniscus | S-NPH3 (OHARA) |
| L22 | Biconcave Negative | S-LAH89 (OHARA) |
| L31 | Positive Meniscus | FCD705 (HOYA) |
| L32 | Negative Meniscus | E-FD8 (HOYA) |
| L33 | Biconvex Positive | FCD515 (HOYA) |
| L34 | Biconcave Negative | S-TIH14 (OHARA) |
| L35 | Biconvex Positive | TAFD55 (HOYA) |
| L36 | Negative Meniscus | S-BSL7 (OHARA) |
Detailed analysis available in the interactive viewer above.