NIKON NIKKOR Z 100-400mm f/4.5-5.6 VR S — Optical Cross-Section & Ray Tracing

Home / Lenses / Nikon / NIKON NIKKOR Z 100-400mm f/4.5-5.6 VR SNIKON NIKKOR Z 100-400mm f/4.5-5.6 VR SJP2022-92388A Example 1
25 elements / 20 groups
6 ED + 2 Super ED
All spherical
Dual-group floating inner focus (G5 + G6)
In-barrel VR (L17 + L18 cemented doublet)
77 mm filter thread
Focus MechanismFloating dual-group inner focus. G5 (cemented negative doublet L20+L21) and G6 (positive L22 + negative L23) move toward the image on independent trajectories during close focus. G5 carries the primary focus travel (+30.6 mm at tele); G6 provides fine correction (+0.4 mm at tele). Total variable-gap sum is constant: true internal focusing with no length change during AF.
Optical Elements (26)ElementTypeGlass
L1Biconvex PositiveN-FK5 / S-FSL5 (FK crown, ED class)
L2Plano-Convex PositiveNikon Super ED (near S-FPL55)
L3Biconvex PositiveS-FPL51 (OHARA)
L4Biconcave NegativeS-LAH63 (OHARA)
L5Biconvex PositiveNikon Super ED (near S-FPL55)
L6Biconvex Positive720502 - lanthanum crown (nd=1.720467, vd~50.2)
L7Biconcave NegativeS-FPL51 (OHARA)
L8Biconcave Negative741526 - lanthanum crown (TAC2 code match; patent nd=1.74100, vd~52.6 inferred)
L9Positive Meniscus855399 — high-index lanthanum (patent nd=1.854505, νd≈39.9; no exact public catalog match)
L10Biconcave NegativeS-LAH97 (OHARA)
L11Biconvex PositiveS-SK14 (OHARA)
L12Plano-Convex PositiveS-FPL51 (OHARA)
L13Plano-Convex PositiveS-FPL51 (OHARA)
L14Biconcave NegativeS-LAH53 (OHARA)
L15Positive MeniscusS-NPH1 (OHARA)
L16Negative Meniscus001255 - ultra-high-index dense flint (nd=2.00069, vd~25.5)
L17Biconvex Positive553555 — borosilicate crown (patent nd=1.552981, νd≈55.5; no exact public catalog match)
L18Negative MeniscusS-LAH98 (OHARA)
L19Positive Meniscus603564 — medium crown (patent nd=1.60342, νd≈56.4; no exact public catalog match)
L20Biconvex Positive850323 - high-index lanthanum (nd=1.85026, vd~32.3)
L21Biconcave NegativeS-LAL18 (OHARA)
L22Biconvex PositiveS-NBH5 (OHARA)
L23Biconcave Negative903354 — ultra-high-index lanthanum (patent nd=1.90265, νd≈35.4; no exact public catalog match)
L24Biconcave NegativeS-FPL51 (OHARA)
L25Positive Meniscus738493 — lanthanum crown (patent nd=1.73800, νd≈49.3; no exact public catalog match)
FLFlat PlateN-BK7 (SCHOTT)
AnalysisDetailed analysis available in the interactive viewer above.

Element	Type	Glass
L1	Biconvex Positive	N-FK5 / S-FSL5 (FK crown, ED class)
L2	Plano-Convex Positive	Nikon Super ED (near S-FPL55)
L3	Biconvex Positive	S-FPL51 (OHARA)
L4	Biconcave Negative	S-LAH63 (OHARA)
L5	Biconvex Positive	Nikon Super ED (near S-FPL55)
L6	Biconvex Positive	720502 - lanthanum crown (nd=1.720467, vd~50.2)
L7	Biconcave Negative	S-FPL51 (OHARA)
L8	Biconcave Negative	741526 - lanthanum crown (TAC2 code match; patent nd=1.74100, vd~52.6 inferred)
L9	Positive Meniscus	855399 — high-index lanthanum (patent nd=1.854505, νd≈39.9; no exact public catalog match)
L10	Biconcave Negative	S-LAH97 (OHARA)
L11	Biconvex Positive	S-SK14 (OHARA)
L12	Plano-Convex Positive	S-FPL51 (OHARA)
L13	Plano-Convex Positive	S-FPL51 (OHARA)
L14	Biconcave Negative	S-LAH53 (OHARA)
L15	Positive Meniscus	S-NPH1 (OHARA)
L16	Negative Meniscus	001255 - ultra-high-index dense flint (nd=2.00069, vd~25.5)
L17	Biconvex Positive	553555 — borosilicate crown (patent nd=1.552981, νd≈55.5; no exact public catalog match)
L18	Negative Meniscus	S-LAH98 (OHARA)
L19	Positive Meniscus	603564 — medium crown (patent nd=1.60342, νd≈56.4; no exact public catalog match)
L20	Biconvex Positive	850323 - high-index lanthanum (nd=1.85026, vd~32.3)
L21	Biconcave Negative	S-LAL18 (OHARA)
L22	Biconvex Positive	S-NBH5 (OHARA)
L23	Biconcave Negative	903354 — ultra-high-index lanthanum (patent nd=1.90265, νd≈35.4; no exact public catalog match)
L24	Biconcave Negative	S-FPL51 (OHARA)
L25	Positive Meniscus	738493 — lanthanum crown (patent nd=1.73800, νd≈49.3; no exact public catalog match)
FL	Flat Plate	N-BK7 (SCHOTT)