CANON New FD 50mm f/1.2 — Optical Cross-Section & Ray Tracing

Home / Lenses / Canon / CANON New FD 50mm f/1.2CANON New FD 50mm f/1.2US 4,364,643↗ — Kikuo Momiyama
7 elements / 6 groups
46° field of view
MFD 0.5 m
52 mm filter thread
Focus MechanismUnit focusing — entire optical assembly translates forward
Optical Elements (7 physical)ElementTypeGlass
L1Positive MeniscusLanthanum special flint [788474] — OHARA LASF014
L2Positive MeniscusLanthanum special flint [788474] — OHARA LASF014 (same as L1)
L3Negative MeniscusH-ZF39 (CDGM catalog equivalent; production supplier unspecified)
L4Negative MeniscusDense flint [805254] — OHARA SF6
L5Positive MeniscusLanthanum special flint [773496] — OHARA LASF016
L6Positive MeniscusLASFN13 catalog equivalent (patent coordinate 863415; production supplier unspecified)
L7Biconvex PositiveLanthanum special flint [773496] — OHARA LASF016 (same as L5)

Element	Type	Glass
L1	Positive Meniscus	Lanthanum special flint [788474] — OHARA LASF014
L2	Positive Meniscus	Lanthanum special flint [788474] — OHARA LASF014 (same as L1)
L3	Negative Meniscus	H-ZF39 (CDGM catalog equivalent; production supplier unspecified)
L4	Negative Meniscus	Dense flint [805254] — OHARA SF6
L5	Positive Meniscus	Lanthanum special flint [773496] — OHARA LASF016
L6	Positive Meniscus	LASFN13 catalog equivalent (patent coordinate 863415; production supplier unspecified)
L7	Biconvex Positive	Lanthanum special flint [773496] — OHARA LASF016 (same as L5)