LEICA SUMMILUX-M 50mm f/1.4 I — Optical Cross-Section & Ray Tracing

Home / Lenses / Leica / LEICA SUMMILUX-M 50mm f/1.4 ILEICA SUMMILUX-M 50mm f/1.4 IDE 1 045 120 B↗ — Otto Zimmermann, Gustav Kleineberg, Eugen Hermanni
7 ELEMENTS / 5 GROUPS
f = 49.811 mm (scaled design)
f/1.4
45° published image angle
Focus MechanismFocus travel is not modeled: patent infinity state only; 1.0 m is historical product metadata.
Optical Elements (7 physical)ElementTypeGlass
L1Positive MeniscusUnmatched (Leitz rare-earth borate glass; composition published in DE1045120)
L2Positive MeniscusLAK6 class (coordinate-compatible spectral proxy; native e 1.64515/57.8; supplier/melt unproven)
L3Negative MeniscusSF8/ZF10 class (supplier unconfirmed)
L4Biconcave NegativeH-ZF39 / S-TIM39 class (supplier unconfirmed)
L5Biconvex PositiveLAF2 / S-LAM2 class (supplier unconfirmed)
L6Biconvex PositiveUnmatched (Leitz rare-earth borate glass; composition published in DE1045120)
L7Biconvex PositiveUnmatched (Leitz rare-earth borate glass; composition published in DE1045120)

Element	Type	Glass
L1	Positive Meniscus	Unmatched (Leitz rare-earth borate glass; composition published in DE1045120)
L2	Positive Meniscus	LAK6 class (coordinate-compatible spectral proxy; native e 1.64515/57.8; supplier/melt unproven)
L3	Negative Meniscus	SF8/ZF10 class (supplier unconfirmed)
L4	Biconcave Negative	H-ZF39 / S-TIM39 class (supplier unconfirmed)
L5	Biconvex Positive	LAF2 / S-LAM2 class (supplier unconfirmed)
L6	Biconvex Positive	Unmatched (Leitz rare-earth borate glass; composition published in DE1045120)
L7	Biconvex Positive	Unmatched (Leitz rare-earth borate glass; composition published in DE1045120)