FUJIFILM FUJINAR 210mm f/4.5 — Optical Cross-Section & Ray Tracing

Home / Lenses / Fujifilm / FUJIFILM FUJINAR 210mm f/4.5FUJIFILM FUJINAR 210mm f/4.5JP S29-2685 B↗, sole example — Ryoichi Doi
4 ELEMENTS / 3 GROUPS
PATENT f′ = 210 mm
COMPUTED EFL 210.947 mm
F/4.5
1 ASPHERICAL SURFACE
Focus MechanismInfinity prescription only. The patent publishes no internal focus motion or minimum focus distance. The disabled 1.00 m endpoint is a placeholder; external view-camera bellows travel is not modeled.
Optical Elements (4 physical)ElementTypeGlass
L1Plano-Convex PositiveUnmatched (N=1.6126; Abbe number and spectral reference not published)
L2Biconcave NegativeUnmatched (N=1.5783; Abbe number and spectral reference not published)
L3Biconcave NegativeUnmatched (N=1.5293; Abbe number and spectral reference not published)
L4Biconvex PositiveUnmatched (N=1.6227; Abbe number and spectral reference not published)

Element	Type	Glass
L1	Plano-Convex Positive	Unmatched (N=1.6126; Abbe number and spectral reference not published)
L2	Biconcave Negative	Unmatched (N=1.5783; Abbe number and spectral reference not published)
L3	Biconcave Negative	Unmatched (N=1.5293; Abbe number and spectral reference not published)
L4	Biconvex Positive	Unmatched (N=1.6227; Abbe number and spectral reference not published)