SIGMA 24-105mm f/4 DG OS HSM Art — Optical Cross-Section & Ray Tracing

Home / Lenses / Sigma / SIGMA 24-105mm f/4 DG OS HSM ArtSIGMA 24-105mm f/4 DG OS HSM ArtJP 2015-055858 A↗ — Tomoki Kono
19 ELEMENTS / 14 GROUPS
NATIVE DESIGN 24.86-101.70 mm
4 ASPHERICAL SURFACES
CONDITIONAL A10=0 ON 28A/29A
Focus MechanismThe patent describes G2 moving toward the object for closer focus, but provides only infinity-focus zoom prescriptions. The production lens focuses to 0.45 m. Intermediate zoom positions are interpolated. The model assumes zero for the unpublished A10 coefficients on surfaces 28A/29A; their effect on the result is unknown.
Optical Elements (19 physical)ElementTypeGlass
L1aNeg. MeniscusFDS90 (HOYA coordinate equivalent; supplier unconfirmed)
L1bBiconvex PositivePCD51 (HOYA coordinate equivalent; supplier unconfirmed)
L1cPos. MeniscusTAF1 (HOYA coordinate equivalent; supplier unconfirmed)
L2aNeg. Meniscus (1× Asph)TAFD30 (HOYA coordinate equivalent; supplier unconfirmed)
L2bBiconcave NegativeTAC8 (HOYA coordinate equivalent; supplier unconfirmed)
L2cBiconvex PositiveFDS90 (HOYA coordinate equivalent; supplier unconfirmed)
L2dNeg. Meniscus (1× Asph)M-LAC130 (HOYA coordinate equivalent; supplier unconfirmed)
L3aBiconvex PositiveFCD100 (HOYA coordinate equivalent; supplier unconfirmed)
L3bNeg. MeniscusTAFD55 (HOYA coordinate equivalent; supplier unconfirmed)
L3cBiconvex PositiveFCD515 (HOYA coordinate equivalent; supplier unconfirmed)
L3dBiconvex PositiveFCD515 (HOYA coordinate equivalent; supplier unconfirmed)
L4aPos. MeniscusFDS90 (HOYA coordinate equivalent; supplier unconfirmed)
L4bBiconcave NegativeE-FEL1 (HOYA coordinate equivalent; supplier unconfirmed)
L4cBiconvex PositiveE-F5 (HOYA coordinate equivalent; supplier unconfirmed)
L4dBiconcave NegativeLAF2 (HOYA coordinate equivalent; supplier unconfirmed)
L5aBiconvex Positive (2× Asph)M-PCD51 (HOYA coordinate equivalent; supplier unconfirmed)
L5bPos. MeniscusFCD100 (HOYA coordinate equivalent; supplier unconfirmed)
L5cBiconcave NegativeTAFD25 (HOYA coordinate equivalent; supplier unconfirmed)
L5dBiconvex PositiveTAF1 (HOYA coordinate equivalent; supplier unconfirmed)

Element	Type	Glass
L1a	Neg. Meniscus	FDS90 (HOYA coordinate equivalent; supplier unconfirmed)
L1b	Biconvex Positive	PCD51 (HOYA coordinate equivalent; supplier unconfirmed)
L1c	Pos. Meniscus	TAF1 (HOYA coordinate equivalent; supplier unconfirmed)
L2a	Neg. Meniscus (1× Asph)	TAFD30 (HOYA coordinate equivalent; supplier unconfirmed)
L2b	Biconcave Negative	TAC8 (HOYA coordinate equivalent; supplier unconfirmed)
L2c	Biconvex Positive	FDS90 (HOYA coordinate equivalent; supplier unconfirmed)
L2d	Neg. Meniscus (1× Asph)	M-LAC130 (HOYA coordinate equivalent; supplier unconfirmed)
L3a	Biconvex Positive	FCD100 (HOYA coordinate equivalent; supplier unconfirmed)
L3b	Neg. Meniscus	TAFD55 (HOYA coordinate equivalent; supplier unconfirmed)
L3c	Biconvex Positive	FCD515 (HOYA coordinate equivalent; supplier unconfirmed)
L3d	Biconvex Positive	FCD515 (HOYA coordinate equivalent; supplier unconfirmed)
L4a	Pos. Meniscus	FDS90 (HOYA coordinate equivalent; supplier unconfirmed)
L4b	Biconcave Negative	E-FEL1 (HOYA coordinate equivalent; supplier unconfirmed)
L4c	Biconvex Positive	E-F5 (HOYA coordinate equivalent; supplier unconfirmed)
L4d	Biconcave Negative	LAF2 (HOYA coordinate equivalent; supplier unconfirmed)
L5a	Biconvex Positive (2× Asph)	M-PCD51 (HOYA coordinate equivalent; supplier unconfirmed)
L5b	Pos. Meniscus	FCD100 (HOYA coordinate equivalent; supplier unconfirmed)
L5c	Biconcave Negative	TAFD25 (HOYA coordinate equivalent; supplier unconfirmed)
L5d	Biconvex Positive	TAF1 (HOYA coordinate equivalent; supplier unconfirmed)