US 2022/0276464 A1 Example 3 - FUJIFILM
| 33 mm APS-C standard prime |
| 15 elements / 10 groups |
| 3 ED elements / 2 aspherical elements |
| Patent f = 33.93 mm, FNo = 1.44 |
| Inner focus, linear-motor production lens |
Inner focus: the complete second lens group G2 translates 5.2416 mm toward the object from infinity to the patent close-focus state; G1, the stop, and G3 remain fixed.
| Element | Type | Glass |
|---|---|---|
| L11 | Biconcave Negative | FK5 / S-FSL5 class fluor crown (487/704 code) |
| L12 | Biconvex Positive | S-LAH55V (OHARA) |
| L13 | Positive Meniscus (ED) | S-FPL51 (OHARA) / FCD1 class ED fluorophosphate |
| L14 | Negative Meniscus | S-FTM16 (OHARA) |
| L15 | Biconvex Positive | S-LAH59 class dense lanthanum flint (816/465 code) |
| L16 | Negative Meniscus | Dense flint (785/263 code; J-SFS3 / SF56A class, uncertain vendor) |
| L21 | Positive Meniscus | S-NPH3 (OHARA) |
| L22 | Negative Meniscus | S-TIH53 (OHARA) |
| L23 | Positive Meniscus (ED) | FCD515 / FCD505 class ED (592/686 code; vendor not uniquely asserted) |
| L24 | Positive Meniscus (ED) | S-FPL51 (OHARA) / FCD1 class ED fluorophosphate |
| L25 | Negative Meniscus | E-FD13 (HOYA) / H-ZF50 class |
| L26 | Positive Meniscus (2x Asph) | Unmatched (853/406 dense lanthanum flint; near S-LAH89 / M-TAFD305 / D-ZLaF85 class) |
| L31 | Biconvex Positive | TAFD37 class dense lanthanum flint (900/374 code) |
| L32 | Biconcave Negative | S-NBH52V (OHARA) |
| L33 | Negative Meniscus (2x Asph) | E-FD8 / SF8 class flint (689/312 code) |
Detailed analysis available in the interactive viewer above.