OLYMPUS G.ZUIKO AUTO-S 50mm f/1.4 — Optical Cross-Section & Ray Tracing

Home / Lenses / Olympus / OLYMPUS G.ZUIKO AUTO-S 50mm f/1.4OLYMPUS G.ZUIKO AUTO-S 50mm f/1.4US 4,094,588 EXAMPLE 1 — NAKAGAWA / OLYMPUS
7 ELEMENTS / 6 GROUPS
f ≈ 50.0 mm
F/1.4
2ω ≈ 46°
ALL SPHERICAL
Focus MechanismUnit focus — entire optical assembly translates forward as a rigid unit.
Optical Elements (7)ElementTypeGlass
L1Positive MeniscusSK16-type (Schott SK16 / HOYA BACD5 — exact)
L2Positive Meniscus694508 - LaK-type A (S-LAL58 code match; patent nd=1.69350, vd=50.8)
L3Negative MeniscusPBL25 (OHARA, 581408)
L4Biconcave NegativeSF4 (Schott SF4 / OHARA S-TIH4 — exact)
L5Biconvex PositiveLAC13 (HOYA, 694533)
L6Positive MeniscusLaSF3 (Schott LaSF3 / HOYA NBFD3 — exact)
L7Biconvex Positive694508 - LaK-type A (same glass as L2; S-LAL58 code match)
AnalysisDetailed analysis available in the interactive viewer above.

Element	Type	Glass
L1	Positive Meniscus	SK16-type (Schott SK16 / HOYA BACD5 — exact)
L2	Positive Meniscus	694508 - LaK-type A (S-LAL58 code match; patent nd=1.69350, vd=50.8)
L3	Negative Meniscus	PBL25 (OHARA, 581408)
L4	Biconcave Negative	SF4 (Schott SF4 / OHARA S-TIH4 — exact)
L5	Biconvex Positive	LAC13 (HOYA, 694533)
L6	Positive Meniscus	LaSF3 (Schott LaSF3 / HOYA NBFD3 — exact)
L7	Biconvex Positive	694508 - LaK-type A (same glass as L2; S-LAL58 code match)