NIKON ZOOM-NIKKOR AUTO 50-300mm f/4.5 — Optical Cross-Section & Ray Tracing

Home / Lenses / Nikon / NIKON ZOOM-NIKKOR AUTO 50-300mm f/4.5NIKON ZOOM-NIKKOR AUTO 50-300mm f/4.5US 3,481,666↗, Example 3 — Takashi Higuchi
20 ELEMENTS / 13 GROUPS
50-300mm f/4.5
ALL-SPHERICAL FOUR-COMPONENT ZOOM
Focus MechanismInfinity zoom prescription only. The production lens focuses to 2.5 m; no finite-focus motion is modeled. Intermediate zoom positions approximate the patent’s fixed-image motion.
Optical Elements (20 physical)ElementTypeGlass
L1Negative Meniscus740282 — dense flint coordinate class (supplier unresolved)
L2Biconvex Positive639555 — SK18 coordinate class (supplier unresolved)
L3Positive Meniscus517696 — low-dispersion crown coordinate class (supplier unresolved)
L4Biconcave Negative691548 — LAK9/LAL9 coordinate class (supplier unresolved)
L5Biconcave Negative517696 — low-dispersion crown coordinate class (supplier unresolved)
L6Positive Meniscus728283 — SF10 coordinate class (supplier unresolved)
L7Biconvex Positive517696 — low-dispersion crown coordinate class (supplier unresolved)
L8Biconvex Positive517696 — low-dispersion crown coordinate class (supplier unresolved)
L9Biconvex Positive620603 — SK16/BSM16 coordinate class (supplier unresolved)
L10Negative Meniscus795284 — high-index flint (J-LAFH3 coordinate-compatible dispersion proxy; supplier unresolved)
L11Biconcave Negative517696 — low-dispersion crown coordinate class (supplier unresolved)
L12Biconcave Negative517696 — low-dispersion crown coordinate class (supplier unresolved)
L13Biconcave Negative624470 — barium-flint / mid-dispersion coordinate class (supplier unresolved)
L14Positive Meniscus741277 — dense flint (E-FD13 coordinate-compatible dispersion proxy; supplier unresolved)
L15Biconcave Negative664359 — BASF2 coordinate class (supplier unresolved)
L16Biconvex Positive517642 — BK7-family crown coordinate class (supplier unresolved)
L17Biconvex Positive465658 — low-index crown coordinate class (supplier unresolved)
L18Biconcave Negative639450 — BAM12 coordinate class (supplier unresolved)
L19Biconvex Positive465658 — low-index crown coordinate class (supplier unresolved)
L20Negative Meniscus620603 — SK16/BSM16 coordinate class (supplier unresolved)

Element	Type	Glass
L1	Negative Meniscus	740282 — dense flint coordinate class (supplier unresolved)
L2	Biconvex Positive	639555 — SK18 coordinate class (supplier unresolved)
L3	Positive Meniscus	517696 — low-dispersion crown coordinate class (supplier unresolved)
L4	Biconcave Negative	691548 — LAK9/LAL9 coordinate class (supplier unresolved)
L5	Biconcave Negative	517696 — low-dispersion crown coordinate class (supplier unresolved)
L6	Positive Meniscus	728283 — SF10 coordinate class (supplier unresolved)
L7	Biconvex Positive	517696 — low-dispersion crown coordinate class (supplier unresolved)
L8	Biconvex Positive	517696 — low-dispersion crown coordinate class (supplier unresolved)
L9	Biconvex Positive	620603 — SK16/BSM16 coordinate class (supplier unresolved)
L10	Negative Meniscus	795284 — high-index flint (J-LAFH3 coordinate-compatible dispersion proxy; supplier unresolved)
L11	Biconcave Negative	517696 — low-dispersion crown coordinate class (supplier unresolved)
L12	Biconcave Negative	517696 — low-dispersion crown coordinate class (supplier unresolved)
L13	Biconcave Negative	624470 — barium-flint / mid-dispersion coordinate class (supplier unresolved)
L14	Positive Meniscus	741277 — dense flint (E-FD13 coordinate-compatible dispersion proxy; supplier unresolved)
L15	Biconcave Negative	664359 — BASF2 coordinate class (supplier unresolved)
L16	Biconvex Positive	517642 — BK7-family crown coordinate class (supplier unresolved)
L17	Biconvex Positive	465658 — low-index crown coordinate class (supplier unresolved)
L18	Biconcave Negative	639450 — BAM12 coordinate class (supplier unresolved)
L19	Biconvex Positive	465658 — low-index crown coordinate class (supplier unresolved)
L20	Negative Meniscus	620603 — SK16/BSM16 coordinate class (supplier unresolved)