JP2017-167327A Example 1 — Sigma / Masakazu Hibino
| 15 elements / 12 groups |
| 12 mm nominal; f = 11.9795 mm design |
| F1.4 nominal; F1.45 design |
| 2 aspherical surfaces |
| 2 UED + 1 ED elements |
| Micro Four Thirds; 84° diagonal AOV |
Internal focus by L12/G3: d22 decreases and d24 increases by 1.6864 mm from infinity to 0.20 m.
| Element | Type | Glass |
|---|---|---|
| L1 | Positive Meniscus | BSC7 (Hoya) |
| L2 | Negative Meniscus | BAFD7 (Hoya) |
| L3 | Neg. Meniscus (1× Asph) | M-BACD5N (Hoya) |
| L4 | Biconcave Negative | FCD100 (Hoya) |
| L5 | Biconvex Positive | NBFD15 (Hoya) |
| L6 | Negative Meniscus | E-F5 (Hoya) |
| L7 | Biconvex Positive | TAFD5F (Hoya) |
| L8 | Negative Meniscus | E-FD13 (Hoya) |
| L9 | Biconvex Positive | FCD100 (Hoya) |
| L10 | Negative Meniscus | TAFD25 (Hoya) |
| L11 | Pos. Meniscus (1× Asph) | M-BACD5N (Hoya) |
| L12 | Positive Meniscus | FC5 (Hoya) |
| L13 | Negative Meniscus | NBFD15 (Hoya) |
| L14 | Biconvex Positive | FCD705 (Hoya) |
| L15 | Negative Meniscus | FDS90 (Hoya) |
Detailed analysis available in the interactive viewer above.