US 2020/0257181 A1 · Example 1
| 16 elements / 12 groups |
| 3 aspherical elements (6 surfaces) |
| 2 UD elements |
| Optical IS (B4 shift) |
| Inner focus (B2) |
Inner focus via B2 (L5, L6+L7). B2 moves image-ward for close focus. No barrel extension; constant overall length during focus at each zoom position.
| Element | Type | Glass |
|---|---|---|
| L1 | Neg. Meniscus (2× Asph) | S-BAL42 (OHARA) |
| L2 | Biconcave Neg. (2× Asph) | S-LAH65V (OHARA) |
| L3 | Biconcave Negative | S-FPM2 (OHARA) |
| L4 | Biconvex Positive | S-NPH1 (OHARA) |
| L5 | Biconvex Positive | S-TIH53 (OHARA) |
| L6 | Negative Meniscus | S-NPH2 (OHARA) |
| L7 | Positive Meniscus | S-TIL6 (OHARA) |
| L8 | Negative Meniscus | TAFD25 (HOYA) |
| L9 | Biconvex Positive | S-FPM3 (OHARA) |
| L10 | Positive Meniscus | S-NPH2 (OHARA) |
| L11 | Biconcave Negative | S-LAH55V (OHARA) |
| L12 | Biconvex Positive | S-FPL51 / FCD1 (OHARA / HOYA) |
| L13 | Biconvex Positive | S-FPL51 / FCD1 (OHARA / HOYA) |
| L14 | Biconcave Negative | TAFD45 (HOYA) |
| L15 | Neg. Meniscus (2× Asph) | S-LAH65V (OHARA) |
| L16 | Biconvex Positive | S-NPH2 (OHARA) |
Detailed analysis available in the interactive viewer above.