Minolta MD 50mm f/2 — Optical Cross-Section & Ray Tracing

Home / Lenses / Minolta / Minolta MD 50mm f/2Minolta MD 50mm f/2US 4,444,473↗ — Yoshinobu Kudo
6 ELEMENTS / 5 GROUPS
50 mm f/2
PATENT 2ω = 46°
ALL-SPHERICAL
Focus MechanismNO_INTERNAL_RECONSTRUCTION — static scaled Example 5; marketed 0.45 m MFD only, with no internal focus law.
Optical Elements (6 physical)ElementTypeGlass
L1Positive Meniscus720503 — lanthanum-crown coordinate class (supplier unresolved)
L2Positive Meniscus720503 — lanthanum-crown coordinate class (supplier unresolved)
L3Negative MeniscusUnmatched (683321 coordinate; supplier unresolved)
L4Biconcave NegativeSF9 — coordinate-compatible dense-flint spectral proxy; supplier unspecified
L5Biconvex PositiveUnmatched (720521 coordinate; supplier unresolved)
L6Plano-Convex Positive744449 — lanthanum-flint coordinate class (supplier unresolved)

Element	Type	Glass
L1	Positive Meniscus	720503 — lanthanum-crown coordinate class (supplier unresolved)
L2	Positive Meniscus	720503 — lanthanum-crown coordinate class (supplier unresolved)
L3	Negative Meniscus	Unmatched (683321 coordinate; supplier unresolved)
L4	Biconcave Negative	SF9 — coordinate-compatible dense-flint spectral proxy; supplier unspecified
L5	Biconvex Positive	Unmatched (720521 coordinate; supplier unresolved)
L6	Plano-Convex Positive	744449 — lanthanum-flint coordinate class (supplier unresolved)