CANON TS-E 24mm f/3.5 L II — Optical Cross-Section & Ray Tracing

Home / Lenses / Canon / CANON TS-E 24mm f/3.5 L IICANON TS-E 24mm f/3.5 L IIUS 2010/0208366 A1↗, Numerical Example 1 — Suguru Inoue
16 ELEMENTS / 10 GROUPS (PATENT EXAMPLE)
24mm MARKETING / 24.247mm TRACED EFL
f/3.5 MARKETING / F/3.56 DESIGN
67.2mm IMAGE CIRCLE
±12mm SHIFT / ±8.5° TILT
1 ASPHERICAL SURFACE
Focus MechanismModeled rear focus: the stop and rear unit L2 move together toward the object while L1 stays fixed. The near endpoint is inferred from Canon’s 0.21 m minimum focus; the patent gives the direction but no close-focus prescription.
Optical Elements (16 physical)ElementTypeGlass
L1Neg. Meniscus (1× Asph)583594 — vendor-unresolved coordinate class
L2Negative Meniscus883408 — vendor-unresolved coordinate class
L3Biconcave Negative497815 — K-PFK80 compatible low-dispersion spectral proxy; patent vendor unspecified
L4Biconvex Positive616587 — K-PSK200 compatible spectral proxy; patent vendor unspecified
L5Negative Meniscus884408 — S-LAH58 compatible spectral proxy; patent vendor unspecified
L6Biconvex Positive796381 — S-LAM73 compatible spectral proxy; patent vendor unspecified
L7Negative MeniscusUnmatched 772361 — patent coordinate; no compatible published catalog curve found
L8Negative Meniscus786486 — N-LAF21 compatible spectral proxy; patent vendor unspecified
L9Positive MeniscusUnmatched 678314 — patent coordinate; no compatible published catalog curve found
L10Negative Meniscus883408 — vendor-unresolved coordinate class
L11Biconvex PositiveUnmatched 554522 — patent coordinate; no compatible published catalog curve found
L12Biconcave NegativeUnmatched 842372 — patent coordinate; no compatible published catalog curve found
L13Biconvex Positive497815 — K-PFK80 compatible low-dispersion spectral proxy; patent vendor unspecified
L14Negative Meniscus883408 — vendor-unresolved coordinate class
L15Biconvex Positive497815 — K-PFK80 compatible low-dispersion spectral proxy; patent vendor unspecified
L16Positive Meniscus699301 — vendor-unresolved coordinate class

Element	Type	Glass
L1	Neg. Meniscus (1× Asph)	583594 — vendor-unresolved coordinate class
L2	Negative Meniscus	883408 — vendor-unresolved coordinate class
L3	Biconcave Negative	497815 — K-PFK80 compatible low-dispersion spectral proxy; patent vendor unspecified
L4	Biconvex Positive	616587 — K-PSK200 compatible spectral proxy; patent vendor unspecified
L5	Negative Meniscus	884408 — S-LAH58 compatible spectral proxy; patent vendor unspecified
L6	Biconvex Positive	796381 — S-LAM73 compatible spectral proxy; patent vendor unspecified
L7	Negative Meniscus	Unmatched 772361 — patent coordinate; no compatible published catalog curve found
L8	Negative Meniscus	786486 — N-LAF21 compatible spectral proxy; patent vendor unspecified
L9	Positive Meniscus	Unmatched 678314 — patent coordinate; no compatible published catalog curve found
L10	Negative Meniscus	883408 — vendor-unresolved coordinate class
L11	Biconvex Positive	Unmatched 554522 — patent coordinate; no compatible published catalog curve found
L12	Biconcave Negative	Unmatched 842372 — patent coordinate; no compatible published catalog curve found
L13	Biconvex Positive	497815 — K-PFK80 compatible low-dispersion spectral proxy; patent vendor unspecified
L14	Negative Meniscus	883408 — vendor-unresolved coordinate class
L15	Biconvex Positive	497815 — K-PFK80 compatible low-dispersion spectral proxy; patent vendor unspecified
L16	Positive Meniscus	699301 — vendor-unresolved coordinate class