NIKON NIKKOR Z 24-70mm f/2.8 S — Optical Cross-Section & Ray Tracing

Home / Lenses / Nikon / NIKON NIKKOR Z 24-70mm f/2.8 SNIKON NIKKOR Z 24-70mm f/2.8 SWO 2020/136749 A1↗ — Kosuke Machida, Osamu Gomibuchi, Kenichi Kitano, Mizuki Wayu, Tsuneo Watanabe, Makoto Horikoshi, Ichiro Imaei
17 ELEMENTS / 15 GROUPS
f = 24.8–67.9 mm
F/2.92
2ω = 85.10°–33.84°
4 ASPHERICAL SURFACES
Focus MechanismDual-group inner focus: G5 and G6 move independently toward object. Patent near states correspond to about 1:30 magnification; displayed endpoint distance varies with zoom and is calculated from the prescription.
Optical Elements (17 physical)ElementTypeGlass
L11Negative MeniscusS-TIH53 (catalog-compatible inference; patent supplier unspecified)
L12Positive MeniscusS-LAH97 (catalog-compatible inference; patent supplier unspecified)
L13Positive MeniscusS-LAH66 (catalog-compatible inference; patent supplier unspecified)
L21Neg. Meniscus (1× Asph)M-NBF1 (catalog-compatible inference; patent supplier unspecified)
L22Biconcave NegativeS-LAH66 (catalog-compatible inference; patent supplier unspecified)
L23Biconvex PositiveJ-SF10 (catalog-compatible inference; patent supplier unspecified)
L24Negative MeniscusS-PHM52 (catalog-compatible inference; patent supplier unspecified)
L31Pos. Meniscus (1× Asph)LAC13 (catalog-compatible inference; patent supplier unspecified)
L32Biconvex PositiveJ-PSKH1 (catalog-compatible inference; patent supplier unspecified)
L41Negative MeniscusJ-KZFH9 (catalog-compatible inference; patent supplier unspecified)
L42Biconvex PositiveJ-FKH1 (catalog-compatible inference; patent supplier unspecified)
L51Negative MeniscusS-NBH8 (catalog-compatible inference; patent supplier unspecified)
L52Biconvex PositiveJ-PSKH4 (catalog-compatible inference; patent supplier unspecified)
L61Pos. Meniscus (1× Asph)792450 — dense lanthanum crown (patent nd=1.79189, νd=45.04; no exact public catalog match)
L71Positive MeniscusFDS18 (catalog-compatible inference; patent supplier unspecified)
L72Biconcave Neg. (1× Asph)M-TAFD305 (catalog-compatible inference; patent supplier unspecified)
L73Negative MeniscusS-BAL35 (catalog-compatible inference; patent supplier unspecified)

Element	Type	Glass
L11	Negative Meniscus	S-TIH53 (catalog-compatible inference; patent supplier unspecified)
L12	Positive Meniscus	S-LAH97 (catalog-compatible inference; patent supplier unspecified)
L13	Positive Meniscus	S-LAH66 (catalog-compatible inference; patent supplier unspecified)
L21	Neg. Meniscus (1× Asph)	M-NBF1 (catalog-compatible inference; patent supplier unspecified)
L22	Biconcave Negative	S-LAH66 (catalog-compatible inference; patent supplier unspecified)
L23	Biconvex Positive	J-SF10 (catalog-compatible inference; patent supplier unspecified)
L24	Negative Meniscus	S-PHM52 (catalog-compatible inference; patent supplier unspecified)
L31	Pos. Meniscus (1× Asph)	LAC13 (catalog-compatible inference; patent supplier unspecified)
L32	Biconvex Positive	J-PSKH1 (catalog-compatible inference; patent supplier unspecified)
L41	Negative Meniscus	J-KZFH9 (catalog-compatible inference; patent supplier unspecified)
L42	Biconvex Positive	J-FKH1 (catalog-compatible inference; patent supplier unspecified)
L51	Negative Meniscus	S-NBH8 (catalog-compatible inference; patent supplier unspecified)
L52	Biconvex Positive	J-PSKH4 (catalog-compatible inference; patent supplier unspecified)
L61	Pos. Meniscus (1× Asph)	792450 — dense lanthanum crown (patent nd=1.79189, νd=45.04; no exact public catalog match)
L71	Positive Meniscus	FDS18 (catalog-compatible inference; patent supplier unspecified)
L72	Biconcave Neg. (1× Asph)	M-TAFD305 (catalog-compatible inference; patent supplier unspecified)
L73	Negative Meniscus	S-BAL35 (catalog-compatible inference; patent supplier unspecified)