KODAK AERO EKTAR 6 in f/3.5 — Optical Cross-Section & Ray Tracing

Home / Lenses / Kodak / KODAK AERO EKTAR 6 in f/3.5KODAK AERO EKTAR 6 in f/3.5US 2,983,193↗ — Willy Schade
6 ELEMENTS / 4 GROUPS
f = 152.58 mm
F/3.5
2ω ≈ 29.4°
ALL-SPHERICAL
Focus MechanismNo internal focus mechanism; unit-focus back-focus extension shown to 10 m for visualization.
Optical Elements (6 physical)ElementTypeGlass
L1Positive MeniscusUnmatched (Kodak proprietary high-index lanthanum flint, 740/458)
L2Positive MeniscusUnmatched (Kodak proprietary high-index crown, 693/562)
L3Negative MeniscusUnmatched (Kodak proprietary dense flint, 683/309)
L4Negative MeniscusH-ZF39 catalog equivalent (patent 667322; production supplier unspecified)
L5Positive MeniscusUnmatched (Kodak proprietary lanthanum flint, 740/439)
L6Positive MeniscusUnmatched (Kodak proprietary high-index lanthanum flint, 740/464)

Element	Type	Glass
L1	Positive Meniscus	Unmatched (Kodak proprietary high-index lanthanum flint, 740/458)
L2	Positive Meniscus	Unmatched (Kodak proprietary high-index crown, 693/562)
L3	Negative Meniscus	Unmatched (Kodak proprietary dense flint, 683/309)
L4	Negative Meniscus	H-ZF39 catalog equivalent (patent 667322; production supplier unspecified)
L5	Positive Meniscus	Unmatched (Kodak proprietary lanthanum flint, 740/439)
L6	Positive Meniscus	Unmatched (Kodak proprietary high-index lanthanum flint, 740/464)