NIKON NIKKOR 35mm f/2.8 (35Ti) — Interactive Lens Diagram

Home / Lenses / Nikon / NIKON NIKKOR 35mm f/2.8 (35Ti)NIKON NIKKOR 35mm f/2.8 (35Ti)US 5,243,468 · Fifth Embodiment (Claim 9) — Nikon / Ohtake 1993
6 ELEMENTS / 4 GROUPS
f ≈ 35.0 mm
F/2.8 (design F/2.88)
2ω ≈ 62.9°
ALL SPHERICAL
Focus MechanismUnit focus — entire lens assembly moves axially; all inter-element spacings remain fixed during focusing.
Optical Elements (6)ElementTypeGlass
L1Positive MeniscusHoya BACD5 (nd=1.69680 / νd=55.5; Δnd≈0, Δνd=+0.1)
L21Biconcave NegativeUnidentified light flint (no standard catalog match within Δnd=0.01, Δνd=1.0)
L22Biconvex PositiveUnidentified proprietary glass (possibly Nikon/Hoya c.1990; above-normal Abbe for nd class)
L31Biconcave NegativeOhara S-TIM22 / Schott N-SF2 equiv. (nd=1.64769 / νd=33.82; Δnd=+0.001, Δνd=−0.02)
L32Biconvex PositiveUnidentified proprietary glass (possibly Nikon/Hoya c.1990; very high nd with above-average νd)
L4Negative MeniscusSchott N-BAK4 (nd=1.56883 / νd=56.04; Δnd≈0, Δνd=−0.04)
AnalysisDetailed analysis available in the interactive viewer above.

Element	Type	Glass
L1	Positive Meniscus	Hoya BACD5 (nd=1.69680 / νd=55.5; Δnd≈0, Δνd=+0.1)
L21	Biconcave Negative	Unidentified light flint (no standard catalog match within Δnd=0.01, Δνd=1.0)
L22	Biconvex Positive	Unidentified proprietary glass (possibly Nikon/Hoya c.1990; above-normal Abbe for nd class)
L31	Biconcave Negative	Ohara S-TIM22 / Schott N-SF2 equiv. (nd=1.64769 / νd=33.82; Δnd=+0.001, Δνd=−0.02)
L32	Biconvex Positive	Unidentified proprietary glass (possibly Nikon/Hoya c.1990; very high nd with above-average νd)
L4	Negative Meniscus	Schott N-BAK4 (nd=1.56883 / νd=56.04; Δnd≈0, Δνd=−0.04)