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

Home / Lenses / Nikon / NIKON AI-S ZOOM-NIKKOR 80-200mm f/2.8 EDNIKON AI-S ZOOM-NIKKOR 80-200mm f/2.8 EDJP S58-54312 A↗, Example 2 — Yoshinari Hamanishi
15 ELEMENTS / 11 GROUPS
80-200mm
F/2.8
30°10′-12°20′
MFD 2.5 m
Focus MechanismCONSTRAINED_RECONSTRUCTION: the patent assigns focusing to G1 but gives no finite-object table. Close-focus D5 values are solved at each zoom position for a 2.5 m object distance measured from the image plane, with G1 translating objectward and G2-G4 plus the image plane fixed relative to one another.
Optical Elements (15 physical)ElementTypeGlass
L1aNegative MeniscusSF4 catalog-equivalent coefficient proxy (patent 755276; production supplier unspecified)
L1bBiconvex PositiveJ-FKH1 catalog-equivalent coefficient proxy (patent 500823; production supplier unspecified)
L2Positive MeniscusJ-FKH1 catalog-equivalent coefficient proxy (patent 500823; production supplier unspecified)
L3aBiconcave NegativeTAF4 catalog-equivalent coefficient proxy (patent 788475; production supplier unspecified)
L3bBiconvex PositiveSF4 catalog-equivalent coefficient proxy (patent 755276; production supplier unspecified)
L3cBiconcave NegativePBL25 catalog-equivalent coefficient proxy (patent 581408; production supplier unspecified)
L4Biconcave NegativeS-BAL35 catalog-equivalent coefficient proxy (patent 589612; production supplier unspecified)
L5aBiconvex PositiveJ-LAK02 catalog-equivalent coefficient proxy (patent 670576; production supplier unspecified)
L5bNegative MeniscusS-TIH6 catalog-equivalent coefficient proxy (patent 805254; production supplier unspecified)
L6Positive MeniscusTAF4 catalog-equivalent coefficient proxy (patent 788475; production supplier unspecified)
L7Positive MeniscusTAF4 catalog-equivalent coefficient proxy (patent 788475; production supplier unspecified)
L8Biconcave NegativeSF4 catalog-equivalent coefficient proxy (patent 755276; production supplier unspecified)
L9Biconvex PositiveK-SK18 catalog-equivalent coefficient proxy (patent 639555; production supplier unspecified)
L10Negative MeniscusJ-LAK8 catalog-equivalent coefficient proxy (patent 713540; production supplier unspecified)
L11Biconvex PositiveE-F3 catalog-equivalent coefficient proxy (patent 613370; production supplier unspecified)

Element	Type	Glass
L1a	Negative Meniscus	SF4 catalog-equivalent coefficient proxy (patent 755276; production supplier unspecified)
L1b	Biconvex Positive	J-FKH1 catalog-equivalent coefficient proxy (patent 500823; production supplier unspecified)
L2	Positive Meniscus	J-FKH1 catalog-equivalent coefficient proxy (patent 500823; production supplier unspecified)
L3a	Biconcave Negative	TAF4 catalog-equivalent coefficient proxy (patent 788475; production supplier unspecified)
L3b	Biconvex Positive	SF4 catalog-equivalent coefficient proxy (patent 755276; production supplier unspecified)
L3c	Biconcave Negative	PBL25 catalog-equivalent coefficient proxy (patent 581408; production supplier unspecified)
L4	Biconcave Negative	S-BAL35 catalog-equivalent coefficient proxy (patent 589612; production supplier unspecified)
L5a	Biconvex Positive	J-LAK02 catalog-equivalent coefficient proxy (patent 670576; production supplier unspecified)
L5b	Negative Meniscus	S-TIH6 catalog-equivalent coefficient proxy (patent 805254; production supplier unspecified)
L6	Positive Meniscus	TAF4 catalog-equivalent coefficient proxy (patent 788475; production supplier unspecified)
L7	Positive Meniscus	TAF4 catalog-equivalent coefficient proxy (patent 788475; production supplier unspecified)
L8	Biconcave Negative	SF4 catalog-equivalent coefficient proxy (patent 755276; production supplier unspecified)
L9	Biconvex Positive	K-SK18 catalog-equivalent coefficient proxy (patent 639555; production supplier unspecified)
L10	Negative Meniscus	J-LAK8 catalog-equivalent coefficient proxy (patent 713540; production supplier unspecified)
L11	Biconvex Positive	E-F3 catalog-equivalent coefficient proxy (patent 613370; production supplier unspecified)