NIKON AF-S NIKKOR 800mm f/5.6E FL ED VR

JP 2013-250293 A — Masashi Yamashita, Mitsuaki Wada

20 LENS ELEMENTS / 13 GROUPS + PROTECTIVE GLASS
PATENT DESIGN EFL ≈ 779.921 mm
DESIGN f/5.658
PUBLISHED 2ω = 3.147°
INNER FOCUS + VR

Focus Mechanism

PUBLISHED inner focus: G2 moves imageward. Patent d11/d16 values are retained at infinity, β=-0.033, and β=-0.155; the intermediate UI coordinate is derived from the verified conjugate distance, with no reconstructed internal spacing.

Optical Elements (21 physical; 22 modeled media)

ElementTypeGlass
HGProtective GlassJ-BK7A (HIKARI)
L1Biconvex PositiveCaF2 fluorite (Nikon specifies two fluorite elements; patent 1.43382/95.13)
L2Biconvex PositiveCaF2 fluorite (Nikon specifies two fluorite elements; patent 1.43382/95.13)
L3Biconcave NegativeJ-LAK10 (HIKARI)
L4Negative Meniscus, convex to objectJ-LAK14 (HIKARI)
L5Positive Meniscus, convex to objectJ-FKH1 (HIKARI)
L6Biconcave NegativeJ-LASF02 (HIKARI)
L7Positive Meniscus, concave to objectJ-LAFH3 (HIKARI)
L8Biconcave NegativeJ-LAK14 (HIKARI)
L9Biconvex PositiveJ-FK5 (HIKARI)
L10Plano-Concave Negative, concave to objectJ-LAFH3 (HIKARI)
L11Biconvex PositiveJ-K3 (HIKARI)
L12Biconcave NegativeJ-LAK14 (HIKARI)
L13Positive Meniscus, concave to objectJ-LF5 (HIKARI)
L14Biconcave NegativeJ-FKH1 (HIKARI)
L15Biconvex PositiveJ-F5 (HIKARI)
L16Negative Meniscus, concave to objectJ-LASF021 (HIKARI)
FLPlane-Parallel PlateJ-BK7 (HIKARI)
L17Biconvex PositiveJ-KF6 (HIKARI)
L18Positive Meniscus, concave to objectJ-FK5 (HIKARI)
L19Biconcave NegativeJ-LASF09A (HIKARI)
L20Biconvex PositiveJ-LF5 (HIKARI)