FUJIFILM FUJINON GF 63mm f/2.8 R WR — Optical Cross-Section & Ray Tracing

Home / Lenses / Fujifilm / FUJIFILM FUJINON GF 63mm f/2.8 R WRFUJIFILM FUJINON GF 63mm f/2.8 R WRUS 2017/0242219 A1↗, Example 1 — Masato Kondo
10 ELEMENTS / 8 GROUPS / 1 ED
63mm marketed / 62.125mm design
f/2.8 marketed / f/2.87 design
46.9° production diagonal angle of view
0.50m MFD / 0.17× max magnification
Focus MechanismFront-group focus: G1, the stop, and G2 move together toward the object; G3 stays fixed. The 0.50 m endpoint is a constrained reconstruction: D14 increases from 1.26 to 14.167 mm, giving 12.907 mm travel and approximately 0.171× magnification.
Optical Elements (10 physical)ElementTypeGlass
L11Positive Meniscus954323 — high-index flint class
L12Positive Meniscus487702 — low-dispersion crown class
L13Negative Meniscus699301 — dense-flint class
L21Positive Meniscus593686 — FCD505-class ED crown (supplier unproven)
L22Negative Meniscus593353 — flint class
L23Positive Meniscus788474 — lanthanum high-index class
L24Positive Meniscus816466 — lanthanum high-index class
L31Biconvex Positive697555 — lanthanum crown class
L32Plano-Concave Negative603380 — F5/TIM5 flint class
L33Negative Meniscus516641 — crown class

Element	Type	Glass
L11	Positive Meniscus	954323 — high-index flint class
L12	Positive Meniscus	487702 — low-dispersion crown class
L13	Negative Meniscus	699301 — dense-flint class
L21	Positive Meniscus	593686 — FCD505-class ED crown (supplier unproven)
L22	Negative Meniscus	593353 — flint class
L23	Positive Meniscus	788474 — lanthanum high-index class
L24	Positive Meniscus	816466 — lanthanum high-index class
L31	Biconvex Positive	697555 — lanthanum crown class
L32	Plano-Concave Negative	603380 — F5/TIM5 flint class
L33	Negative Meniscus	516641 — crown class