US 2021/0294073 A1 Example 1 — Fujifilm / Kondo
| 12 ELEMENTS / 9 GROUPS |
| f ≈ 78.7 mm |
| F/1.75 |
| 2ω ≈ 38.0° |
| 2 ASPHERICAL SURFACES (1 element) |
| Medium format (GFX, 43.8 × 32.9 mm) |
Inner focus: G2 (L21–L26 + stop) moves toward object. G1 and G3 fixed. DC motor with GMR sensor.
| Element | Type | Glass |
|---|---|---|
| L11 | Positive Meniscus | S-NBH55 (OHARA) |
| L12 | Biconcave Negative | S-TIH10 (OHARA) |
| L21 | Positive Meniscus | J-LASKH2 (Hikari) |
| L22 | Positive Meniscus | S-FPL55 (OHARA) |
| L23 | Negative Meniscus | S-BAL2 (OHARA) |
| L24 | Positive Meniscus | S-FPL55 (OHARA) |
| L25 | Negative Meniscus | E-FD5 (HOYA) |
| L26 | Pos. Meniscus (2× Asph) | K-VC89 (Sumita) |
| L31 | Biconvex Positive | H-ZLaF68L (NHG) |
| L32 | Plano-Concave Negative | S-FTM16 (OHARA) |
| L33 | Plano-Concave Negative | N-BK7 (Schott) |
| L34 | Plano-Concave Negative | E-FD2 (HOYA) |
Detailed analysis available in the interactive viewer above.