NIKON AI AF ZOOM-NIKKOR 80-200mm f/2.8 ED — Optical Cross-Section & Ray Tracing

Home / Lenses / Nikon / NIKON AI AF ZOOM-NIKKOR 80-200mm f/2.8 EDNIKON AI AF ZOOM-NIKKOR 80-200mm f/2.8 EDJP S62-108218 A↗, Example 3 — Yoshinari Hamanishi
16 ELEMENTS / 11 GROUPS
80-196 mm DESIGN
F/2.88
3 LOW-DISPERSION ELEMENTS
Focus MechanismPublished front-group focus: G1 moves 10.496 mm objectward at both zoom endpoints; D13 and D18 remain fixed. The patent close states (beta = -0.055 / -0.135) normalize to approximately 1.800 m object-to-image-plane distance.
Optical Elements (16 physical)ElementTypeGlass
L11Negative Meniscus805255 flint class (catalog unresolved)
L12Biconvex Positive498826 — J-FKH1 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved
L13Positive Meniscus498826 — J-FKH1 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved
L21Positive Meniscus626356 — F1 (SUMITA) coordinate-compatible spectral proxy; production supplier unresolved
L22Biconcave Negative564608 — N-SK11 (SCHOTT) coordinate-compatible spectral proxy; production supplier unresolved
L23Biconcave Negative517641 BK7-class crown (supplier unresolved)
L24Positive Meniscus805255 flint class (catalog unresolved)
L25Biconcave Negative713540 — J-LAK8 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved
L31Biconvex Positive518603 — BALK3 (SUMITA) coordinate-compatible spectral proxy; production supplier unresolved
L32Biconvex Positive564608 — N-SK11 (SCHOTT) coordinate-compatible spectral proxy; production supplier unresolved
L33Negative Meniscus757317 — E-LAF11 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved
L41Positive Meniscus498826 — J-FKH1 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved
L42aNearly Plano-Convex Positive487702 crown class (FK5 coordinate; supplier unresolved)
L42bNearly Plano-Concave Negative805255 flint class (catalog unresolved)
L43Negative Meniscus744451 — J-LAF2 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved
L44Biconvex Positive668420 — J-BASF6 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved

Element	Type	Glass
L11	Negative Meniscus	805255 flint class (catalog unresolved)
L12	Biconvex Positive	498826 — J-FKH1 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved
L13	Positive Meniscus	498826 — J-FKH1 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved
L21	Positive Meniscus	626356 — F1 (SUMITA) coordinate-compatible spectral proxy; production supplier unresolved
L22	Biconcave Negative	564608 — N-SK11 (SCHOTT) coordinate-compatible spectral proxy; production supplier unresolved
L23	Biconcave Negative	517641 BK7-class crown (supplier unresolved)
L24	Positive Meniscus	805255 flint class (catalog unresolved)
L25	Biconcave Negative	713540 — J-LAK8 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved
L31	Biconvex Positive	518603 — BALK3 (SUMITA) coordinate-compatible spectral proxy; production supplier unresolved
L32	Biconvex Positive	564608 — N-SK11 (SCHOTT) coordinate-compatible spectral proxy; production supplier unresolved
L33	Negative Meniscus	757317 — E-LAF11 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved
L41	Positive Meniscus	498826 — J-FKH1 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved
L42a	Nearly Plano-Convex Positive	487702 crown class (FK5 coordinate; supplier unresolved)
L42b	Nearly Plano-Concave Negative	805255 flint class (catalog unresolved)
L43	Negative Meniscus	744451 — J-LAF2 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved
L44	Biconvex Positive	668420 — J-BASF6 (HIKARI) coordinate-compatible spectral proxy; production supplier unresolved