NIKON UV-NIKKOR AUTO 55mm f/4 — Optical Cross-Section & Ray Tracing

Home / Lenses / Nikon / NIKON UV-NIKKOR AUTO 55mm f/4NIKON UV-NIKKOR AUTO 55mm f/4JP S42-9417↗ — Zenji Wakimoto
3 elements / 3 groups
f ≈ 55.03 mm
F/4
2ω ≈ 43°
UV 300-400 nm design
Focus MechanismUnit focusing inferred from the fixed three-singlet optical block; BF increases from 47.047 mm at infinity to 53.287 mm at 0.6 m.
Optical Elements (3 physical)ElementTypeGlass
L1Biconvex PositiveUnmatched UV crown (BK7/S-BSL7 class; stored index is n365=1.537, not catalog nd)
L2Biconcave NegativeUnmatched UV light flint (J-LLF2/S-TIL2 class; stored index is n365=1.56818, not catalog nd)
L3Biconvex PositiveUnmatched UV crown (BK7/S-BSL7 class; stored index is n365=1.537, not catalog nd)

Element	Type	Glass
L1	Biconvex Positive	Unmatched UV crown (BK7/S-BSL7 class; stored index is n365=1.537, not catalog nd)
L2	Biconcave Negative	Unmatched UV light flint (J-LLF2/S-TIL2 class; stored index is n365=1.56818, not catalog nd)
L3	Biconvex Positive	Unmatched UV crown (BK7/S-BSL7 class; stored index is n365=1.537, not catalog nd)