NIKON AF-S NIKKOR 58mm f/1.4 G — Optical Cross-Section & Ray Tracing

Home / Lenses / Nikon / NIKON AF-S NIKKOR 58mm f/1.4 GNIKON AF-S NIKKOR 58mm f/1.4 GJP2013-019993A EXAMPLE 2 (NEAR MATCH) — NIKON / HARUO SATO
9 ELEMENTS / 5 GROUPS (patent) · 6 GROUPS (production)
f ≈ 58.0 mm
F/1.4
2ω ≈ 41.7°
2 ASPHERICAL SURFACES
Focus MechanismUnit focus — entire optical assembly translates forward via SWM helicoid. BFD increases at close focus.
Optical Elements (9)ElementTypeGlass
LaPos. Meniscus (1× Asph)Lanthanum dense flint (LASF-type, nd/νd match uncertain)
Lb1pPositive MeniscusJ-LASKH2 (Hikari, patent nd/vd match) / N-LAK33B
Lb1nNegative MeniscusS-FSL5 / FK5 (fluorine crown, low dispersion)
Lb2Negative MeniscusE-FD8 (HOYA, patent nd/vd match) / S-TIM28
LcnBiconcave NegativeH-ZF4A (CDGM, patent nd/vd match) / S-TIH10
LcpBiconvex PositiveS-LAH58 / N-LASF44 (high-index lanthanum)
Ldp1Biconvex PositiveS-LAH58 / N-LASF44 (high-index lanthanum, same family as Lcp)
LdnBiconcave NegativeUnmatched (KZFS2-type short flint; S-NBM51 name rejected by stored nd/vd)
Ldp2Biconvex Positive (1× Asph)Same as La (lanthanum dense flint, LASF-type)
AnalysisDetailed analysis available in the interactive viewer above.

Element	Type	Glass
La	Pos. Meniscus (1× Asph)	Lanthanum dense flint (LASF-type, nd/νd match uncertain)
Lb1p	Positive Meniscus	J-LASKH2 (Hikari, patent nd/vd match) / N-LAK33B
Lb1n	Negative Meniscus	S-FSL5 / FK5 (fluorine crown, low dispersion)
Lb2	Negative Meniscus	E-FD8 (HOYA, patent nd/vd match) / S-TIM28
Lcn	Biconcave Negative	H-ZF4A (CDGM, patent nd/vd match) / S-TIH10
Lcp	Biconvex Positive	S-LAH58 / N-LASF44 (high-index lanthanum)
Ldp1	Biconvex Positive	S-LAH58 / N-LASF44 (high-index lanthanum, same family as Lcp)
Ldn	Biconcave Negative	Unmatched (KZFS2-type short flint; S-NBM51 name rejected by stored nd/vd)
Ldp2	Biconvex Positive (1× Asph)	Same as La (lanthanum dense flint, LASF-type)