NIKON 1 NIKKOR 11-27.5mm f/3.5-5.6 — Optical Cross-Section & Ray Tracing

Home / Lenses / Nikon / NIKON 1 NIKKOR 11-27.5mm f/3.5-5.6NIKON 1 NIKKOR 11-27.5mm f/3.5-5.6US 2015/0153549 A1↗ — Mami Muratani
11-27.5mm CX-format zoom
Patent f = 11.35-26.71 mm
f/3.5-5.6 marketed maximum aperture
8 optical elements / 6 groups + protective plate
1 ED element; 1 aspherical surface
Focus MechanismG1 front-group focus modeled as an objectward shift for close focus. The protective plate remains at its tabulated fixed spacing ahead of G1 in this data model; D8 increases by about 1.14-1.15 mm at 0.30 m.
Optical Elements (9 physical)ElementTypeGlass
PPlano-Parallel Protective GlassBK7 / S-BSL7 class (protective glass)
L1Negative Meniscus (1x Asph)M-TAFD305 class (high-index lanthanum flint)
L2Biconcave Negative EDJ-FKH1 class (Hikari ED fluorophosphate)
L3Positive MeniscusS-TIH53 equivalent (N-SF57HT / FDS90-SG class dense flint)
L4Biconvex PositiveS-BSM18 class (dense barium crown)
L5Biconvex PositiveJ-PSKH1 (Hikari phosphate crown)
L6Biconcave NegativeS-LAM2 class (OHARA lanthanum flint)
L7Negative MeniscusJ-LASFH13HS / S-LAH95 class (ultra-high-index dense flint)
L8Biconvex PositiveS-BSM28 class (dense barium crown)

Element	Type	Glass
P	Plano-Parallel Protective Glass	BK7 / S-BSL7 class (protective glass)
L1	Negative Meniscus (1x Asph)	M-TAFD305 class (high-index lanthanum flint)
L2	Biconcave Negative ED	J-FKH1 class (Hikari ED fluorophosphate)
L3	Positive Meniscus	S-TIH53 equivalent (N-SF57HT / FDS90-SG class dense flint)
L4	Biconvex Positive	S-BSM18 class (dense barium crown)
L5	Biconvex Positive	J-PSKH1 (Hikari phosphate crown)
L6	Biconcave Negative	S-LAM2 class (OHARA lanthanum flint)
L7	Negative Meniscus	J-LASFH13HS / S-LAH95 class (ultra-high-index dense flint)
L8	Biconvex Positive	S-BSM28 class (dense barium crown)