VOIGTLÄNDER APO-LANTHAR 210mm f/4.5 — Optical Cross-Section & Ray Tracing

Home / Lenses / Voigtländer / VOIGTLÄNDER APO-LANTHAR 210mm f/4.5VOIGTLÄNDER APO-LANTHAR 210mm f/4.5US 2,645,154↗, sole example — Albrecht Wilhelm Tronnier
5 ELEMENTS / 3 GROUPS
210mm f/4.5 (PRODUCTION)
f = 210.004 mm (MODELED)
FIELD: ALMOST 60° (PATENT)
Focus MechanismThe patent provides only an infinity prescription. View-camera bellows focusing is not modeled.
Optical Elements (5 physical)ElementTypeGlass
L1Biconvex Positive660570 — patent barium crown class; K-LaK11 coordinate-compatible spectral proxy, not a composition or supplier identification
L2Plano-Concave Negative603384 — F5 compatible spectral proxy; patent vendor unspecified
L3Biconcave Negative643479 — BAF9 compatible barium-flint spectral proxy; patent vendor unspecified
L4Biconcave Negative603384 — F5 compatible spectral proxy; patent vendor unspecified
L5Biconvex Positive669475 — S-BAH10 compatible spectral proxy; patent barium crown class, supplier unspecified

Element	Type	Glass
L1	Biconvex Positive	660570 — patent barium crown class; K-LaK11 coordinate-compatible spectral proxy, not a composition or supplier identification
L2	Plano-Concave Negative	603384 — F5 compatible spectral proxy; patent vendor unspecified
L3	Biconcave Negative	643479 — BAF9 compatible barium-flint spectral proxy; patent vendor unspecified
L4	Biconcave Negative	603384 — F5 compatible spectral proxy; patent vendor unspecified
L5	Biconvex Positive	669475 — S-BAH10 compatible spectral proxy; patent barium crown class, supplier unspecified