JP 2026-091132 A, Example 1 — Hiroki Saito, Motoari Ota, Shunsuke Miyagishima
| 25 ELEMENTS / 19 GROUPS |
| DESIGN f = 32.94-87.33 mm |
| DESIGN F/3.19-3.30 |
| 6 ASPHERICAL SURFACES / 3 ELEMENTS |
| INFINITY FOCUS ONLY |
G4 focuses by moving toward the image. The patent prints no close-focus spacings, so the model stays at infinity focus; 0.8 m is Fujifilm's published minimum focus.
| Element | Type | Glass |
|---|---|---|
| L11 | Negative Meniscus | S-TIH53WN (OHARA catalog equivalent; production supplier unspecified) |
| L12 | Positive Meniscus | PCD51 (HOYA catalog equivalent; production supplier unspecified) |
| L13 | Positive Meniscus | S-LAL18 (OHARA catalog equivalent; production supplier unspecified) |
| L21 | Negative Meniscus | S-LAH66 (OHARA catalog equivalent; production supplier unspecified) |
| L22 | Biconcave Negative | S-LAH66 (OHARA catalog equivalent; production supplier unspecified) |
| L23 | Positive Meniscus (2x Asph) | L-BSL7 (OHARA; moulding glass, coordinate proxy; production supplier unspecified) |
| L24 | Biconvex Positive | S-NPH2 (OHARA catalog equivalent; production supplier unspecified) |
| L25 | Negative Meniscus | H-ZLaF50E (CDGM catalog equivalent; production supplier unspecified) |
| L31 | Negative Meniscus | NBFD15 (HOYA catalog equivalent; production supplier unspecified) |
| L32 | Positive Meniscus | H-ZF4A (CDGM catalog equivalent; production supplier unspecified) |
| L33 | Biconvex Positive (2x Asph) | MC-FCD1-M20 (HOYA; moulding glass; production supplier unspecified) |
| L34 | Plano-Concave Negative | H-ZF88 (CDGM catalog equivalent; production supplier unspecified) |
| L35 | Biconvex Positive | S-FTM16 (OHARA catalog equivalent; production supplier unspecified) |
| L36 | Biconvex Positive | NBFD15 (HOYA catalog equivalent; production supplier unspecified) |
| L37 | Biconcave Negative | S-NBH51 (OHARA catalog equivalent; production supplier unspecified) |
| L38 | Biconvex Positive | S-FSL5 (OHARA catalog equivalent; production supplier unspecified) |
| L39 | Biconvex Positive | S-LAH65 (OHARA catalog equivalent; production supplier unspecified) |
| L41 | Biconcave Negative (2x Asph) | L-LAL13 (OHARA; moulding glass, coordinate proxy; production supplier unspecified) |
| L42 | Plano-Concave Negative | N-FK5 (Schott catalog equivalent; production supplier unspecified) |
| L43 | Plano-Convex Positive | H-ZF88 (CDGM catalog equivalent; production supplier unspecified) |
| L51 | Biconvex Positive | S-FPL51 (OHARA catalog equivalent; production supplier unspecified) |
| L52 | Negative Meniscus | TAFD55 (HOYA catalog equivalent; production supplier unspecified) |
| L53 | Biconvex Positive | H-K9L (CDGM catalog equivalent; production supplier unspecified) |
| L54 | Positive Meniscus | S-FPL51 (OHARA catalog equivalent; production supplier unspecified) |
| L55 | Negative Meniscus | TAFD40 (HOYA catalog equivalent; production supplier unspecified) |