CANON EF 135mm f/2 L USM — Optical Cross-Section & Ray Tracing

Home / Lenses / Canon / CANON EF 135mm f/2 L USMCANON EF 135mm f/2 L USMJP 2018-049102 A↗ — Tomohiko Ishibashi
10 ELEMENTS / 8 GROUPS
135 mm f/2 (marketing)
f = 133.495 mm / F2.0598 (design)
2ω ≈ 18.42°
PUBLISHED REAR/INTERNAL FOCUS
Focus MechanismPUBLISHED rear/internal focus: negative G2 (L6+L7, surfaces 12-14) translates 15.53 mm imageward from infinity to 0.900 m; G1 and G3 remain fixed.
Optical Elements (10 physical)ElementTypeGlass
L1Biconvex Positive487702 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L2Positive Meniscus497815 UD-class coordinate (catalog-equivalent coefficient proxy; production supplier unspecified)
L3Biconcave Negative834372 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L4Biconvex Positive497815 UD-class coordinate (catalog-equivalent coefficient proxy; production supplier unspecified)
L5Negative Meniscus717295 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L6Positive Meniscus847239 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L7Biconcave Negative720502 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L8Biconcave Negative741278 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L9Biconvex Positive773496 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L10Biconvex Positive834372 class (catalog-equivalent coefficient proxy; production supplier unspecified)

Element	Type	Glass
L1	Biconvex Positive	487702 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L2	Positive Meniscus	497815 UD-class coordinate (catalog-equivalent coefficient proxy; production supplier unspecified)
L3	Biconcave Negative	834372 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L4	Biconvex Positive	497815 UD-class coordinate (catalog-equivalent coefficient proxy; production supplier unspecified)
L5	Negative Meniscus	717295 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L6	Positive Meniscus	847239 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L7	Biconcave Negative	720502 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L8	Biconcave Negative	741278 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L9	Biconvex Positive	773496 class (catalog-equivalent coefficient proxy; production supplier unspecified)
L10	Biconvex Positive	834372 class (catalog-equivalent coefficient proxy; production supplier unspecified)