NIKON AF-S NIKKOR 16-35mm f/4 G ED VR

US 2010/0238560 A1, Example 1 — Makoto Fujimoto

17 ELEMENTS / 11 GROUPS (+ RESIN LAYER)
f = 16.48–33.94 mm
F/4.1 CONSTANT
2ω = 108°–63°
4 ASPHERICAL SURFACES / 3 ELEMENTS
2 ED-CLASS ELEMENTS (νd 82.5)

Focus Mechanism

Internal focusing by axial movement of cemented lens CL21 (L21+L22) inside G2 (¶0060). The patent tabulates no close-focus gaps, so focus travel is not modeled; 0.29 m is Nikon's published minimum focus distance.

Optical Elements (17 physical; 18 modeled media)

ElementTypeGlass
L11Neg. Meniscus (2× Asph)J-LASFH2 (catalog-compatible spectral proxy; patent 1.7669/46.85, catalog 1.76684/46.78; production supplier unspecified)
L12Biconcave NegativeS-LAH58 (catalog-compatible spectral proxy; patent 1.883/40.76, catalog 1.882997/40.7651; production supplier unspecified)
L13Biconcave NegativeS-LAH58 (catalog-compatible spectral proxy; patent 1.883/40.76, catalog 1.882997/40.7651; production supplier unspecified)
L13rAsph. Resin Layer (1× Asph)UV-cure resin layer (inferred; patent nd=1.55389, vd=38.09; material identity unspecified)
L14Biconvex PositiveS-TIM35 (catalog-compatible spectral proxy; patent 1.69895/30.13, catalog 1.698947/30.127865; production supplier unspecified)
L21Negative MeniscusS-TIH53 (catalog-compatible spectral proxy; patent 1.84666/23.78, catalog 1.84666/23.7779; production supplier unspecified)
L22Biconvex PositiveS-TIM5 (catalog-compatible spectral proxy; patent 1.60342/38.01, catalog 1.60342/38.03; production supplier unspecified)
L23Biconvex PositiveS-NSL3 (catalog-compatible spectral proxy; patent 1.51823/58.93, catalog 1.518229/58.902057; production supplier unspecified)
L31Positive MeniscusS-BAH27 (catalog-compatible spectral proxy; patent 1.70154/41.17, catalog 1.701536/41.23944; production supplier unspecified)
L32Biconcave NegativeS-LAH58 (catalog-compatible spectral proxy; patent 1.883/40.76, catalog 1.882997/40.7651; production supplier unspecified)
L33Negative MeniscusS-LAH58 (catalog-compatible spectral proxy; patent 1.883/40.76, catalog 1.882997/40.7651; production supplier unspecified)
L34Biconvex PositiveS-TIH53 (catalog-compatible spectral proxy; patent 1.84666/23.78, catalog 1.84666/23.7779; production supplier unspecified)
L41Biconvex PositiveJ-FKH1 (catalog-compatible spectral proxy; patent 1.49782/82.51, catalog 1.49782/82.57; production supplier unspecified)
L42Biconcave NegativeS-LAH60 (catalog-compatible spectral proxy; patent 1.834/37.16, catalog 1.834/37.16; production supplier unspecified)
L43Biconvex PositiveJ-FKH1 (catalog-compatible spectral proxy; patent 1.49782/82.51, catalog 1.49782/82.57; production supplier unspecified)
L44Negative MeniscusS-LAH58 (catalog-compatible spectral proxy; patent 1.883/40.76, catalog 1.882997/40.7651; production supplier unspecified)
L45Biconvex PositiveS-FSL5 (catalog-compatible spectral proxy; patent 1.48749/70.41, catalog 1.48749/70.2363; production supplier unspecified)
L46Neg. Meniscus (1× Asph)S-LAH53 (catalog-compatible spectral proxy; patent 1.8061/40.77, catalog 1.806098/40.926; production supplier unspecified)