Nikon AI Zoom-Nikkor 35-200mm f/3.5-4.5S

US 4,770,511 Example 2 — Nippon Kogaku / Yonezawa, Aono & Takahashi

17 elements / 13 groups
f = 36.23-194.85 mm computed
F/3.5-4.5 nominal
135 full-frame coverage
All-spherical prescription

Focus Mechanism

Normal focusing is by the first lens group. The close-focus endpoint modeled here is the patent telephoto-end macro state at β = -0.25.

Optical Elements (17)

ElementTypeGlass
L1Negative MeniscusSF6 / S-TIH6 class (dense flint, 805/254)
L2Biconvex PositiveFK / J-FKH1 class (fluorophosphate crown, 498/823)
L3Positive MeniscusBAF10-class barium flint (670/471, near-match)
L4Negative MeniscusJ-LASFH9A class (Hikari, 903/358)
L5aPositive MeniscusSF6 / S-TIH6 class (dense flint, 805/254)
L5bNegative MeniscusLAH65V-class lanthanum flint (804/464, near-match)
L6aNegative MeniscusJ-LAK8 / LAK8 class (713/540)
L6bPositive MeniscusJ-SFH2 class (very dense flint, 861/230)
L7Positive MeniscusBK7 / J-BK7A / S-BSL7 class (517/641)
L8Biconvex PositivePKH1-class phosphate crown (519/700)
L9Negative MeniscusJ-SFH2 class (very dense flint, 861/230)
L10Biconvex PositiveBK7 / J-BK7A / S-BSL7 class (517/641)
L11Positive MeniscusS-BSM16 / J-SK16 / N-SK16 class (620/603)
L12Biconcave NegativeUnmatched lanthanum-flint-region glass (796/410)
L13Positive MeniscusBK7 / J-BK7A / S-BSL7 class (517/641)
L14aPositive MeniscusUnmatched crown glass (518/603)
L14bNegative MeniscusLAH64-class lanthanum flint (788/475, near-match)

Analysis

Detailed analysis available in the interactive viewer above.