SAMYANG AF 85mm f/1.4 FE — Optical Cross-Section & Ray Tracing

Home / Lenses / Samyang / SAMYANG AF 85mm f/1.4 FESAMYANG AF 85mm f/1.4 FEWO 2021/085655 A1↗ — Moon-Kyung Kim
11 elements / 8 groups
f = 83.996 mm design / 85 mm marketed
F/1.47 design / f/1.4 marketed
2ω = 28.9°
All-spherical, 4 HR + 1 ED
Focus MechanismSingle-element internal focus: negative meniscus G320 moves image-ward by 5.053 mm.
Optical Elements (11 physical)ElementTypeGlass
L1Positive MeniscusTAFD40 (HOYA) / H-ZLaF90 class
L2Plano-Convex PositiveFCD1 (HOYA) / S-FPL51 class
L3Plano-Concave NegativeFDS90 (HOYA) / S-TIH53 class
L4Positive MeniscusS-LAH66 (OHARA) / TAF1 (HOYA) class
L5Negative MeniscusLAC8 (HOYA) / S-LAL8 class
L6Negative MeniscusE-FD4 (HOYA) / S-TIH4 class
L7Biconvex PositiveLAC8 (HOYA) / S-LAL8 class
L8Biconcave NegativeE-FD4 (HOYA) / S-TIH4 class
L9Biconvex PositiveE-FDS1 (HOYA) / H-ZF62 class
L10Biconvex PositiveTAFD55 (HOYA) / S-LAH99 class
L11Negative MeniscusFDS18 (HOYA) / H-ZF88 class

Element	Type	Glass
L1	Positive Meniscus	TAFD40 (HOYA) / H-ZLaF90 class
L2	Plano-Convex Positive	FCD1 (HOYA) / S-FPL51 class
L3	Plano-Concave Negative	FDS90 (HOYA) / S-TIH53 class
L4	Positive Meniscus	S-LAH66 (OHARA) / TAF1 (HOYA) class
L5	Negative Meniscus	LAC8 (HOYA) / S-LAL8 class
L6	Negative Meniscus	E-FD4 (HOYA) / S-TIH4 class
L7	Biconvex Positive	LAC8 (HOYA) / S-LAL8 class
L8	Biconcave Negative	E-FD4 (HOYA) / S-TIH4 class
L9	Biconvex Positive	E-FDS1 (HOYA) / H-ZF62 class
L10	Biconvex Positive	TAFD55 (HOYA) / S-LAH99 class
L11	Negative Meniscus	FDS18 (HOYA) / H-ZF88 class