NIKON SERIES E 100mm f/2.8 — Optical Cross-Section & Ray Tracing

Home / Lenses / Nikon / NIKON SERIES E 100mm f/2.8NIKON SERIES E 100mm f/2.8US 4,303,314 Embodiment 1 — Nippon Kogaku / Sei Matsui
4 elements / 4 groups
f = 100.02 mm
F/2.8
2ω = 24° patent
0 aspherical surfaces
Focus MechanismUnit focusing by whole-lens extension; patent gives only infinity spacing, so close focus varies only the final BFD.
Optical Elements (4)ElementTypeGlass
L1Positive Meniscus613586 — dense crown (line-index backfill; patent nd=1.61272, νd=58.6)
L2Positive MeniscusS-BSM16 (OHARA) / N-SK16 class
L3Negative MeniscusS-TIH1 (OHARA) / SF1 class
L4Positive MeniscusS-TIH13 (OHARA)
AnalysisDetailed analysis available in the interactive viewer above.

Element	Type	Glass
L1	Positive Meniscus	613586 — dense crown (line-index backfill; patent nd=1.61272, νd=58.6)
L2	Positive Meniscus	S-BSM16 (OHARA) / N-SK16 class
L3	Negative Meniscus	S-TIH1 (OHARA) / SF1 class
L4	Positive Meniscus	S-TIH13 (OHARA)