HASSELBLAD XCD 25mm f/2.5 V — Optical Cross-Section & Ray Tracing

Home / Lenses / Hasselblad / HASSELBLAD XCD 25mm f/2.5 VHASSELBLAD XCD 25mm f/2.5 VUS 2024/0329362 A1↗ — Emiri Suzuki
13 ELEMENTS / 10 GROUPS
DESIGN f = 25.03 mm
DESIGN F/2.58
7 ASPHERICAL SURFACES / 4 ELEMENTS
Focus MechanismPUBLISHED infinity and close-focus states (patent Table 2C). Inner focus: only the negative group G2 (L9–L10) moves, 4.97 mm toward the image; G1 (sub-groups G1a and G1b), the stop and G3 stay fixed. The close state places the object 135 mm in front of the first surface, 250 mm from the image plane, matching the marketed 0.25 m minimum focus distance. Positions between the two printed states are linear interpolation of the gaps, so intermediate distance readings are approximate.
Optical Elements (13 physical; 16 modeled media)ElementTypeGlass
L1Negative MeniscusTAC8 (HOYA; coordinate equivalent; supplier unconfirmed)
L2Negative Meniscus (2× Asph)S-BSL7 (OHARA; coordinate equivalent; supplier unconfirmed)
L3Biconcave NegativeFCD1 (HOYA; coordinate equivalent; supplier unconfirmed)
C1Optical Cement LayerOptical cement (patent nd=1.56732, vd=42.8)
L4Positive MeniscusFD60 (HOYA; coordinate equivalent; supplier unconfirmed)
L5Negative MeniscusE-FDS1 (HOYA; coordinate equivalent; supplier unconfirmed)
L6Biconvex Positive (2× Asph)K-VC181 (SUMITA; coordinate equivalent; supplier unconfirmed)
L7Negative MeniscusNBFD15 (HOYA; coordinate equivalent; supplier unconfirmed)
C2Optical Cement LayerOptical cement (patent nd=1.56732, vd=42.8)
L8Biconvex PositiveFCD705 (HOYA; coordinate equivalent; supplier unconfirmed)
L9Biconvex PositiveFDS16-W (HOYA; coordinate equivalent; supplier unconfirmed)
L10Biconcave Negative (2× Asph)L-TIM28 (OHARA; coordinate equivalent; supplier unconfirmed)
L11Biconvex PositiveFCD600 (HOYA; coordinate equivalent; supplier unconfirmed)
L12Biconcave NegativeNBFD25 (HOYA; coordinate equivalent; supplier unconfirmed)
C3Optical Cement LayerOptical cement (patent nd=1.56732, vd=42.8)
L13Biconvex Positive (1× Asph)S-BSL7 (OHARA; coordinate equivalent; supplier unconfirmed)

Element	Type	Glass
L1	Negative Meniscus	TAC8 (HOYA; coordinate equivalent; supplier unconfirmed)
L2	Negative Meniscus (2× Asph)	S-BSL7 (OHARA; coordinate equivalent; supplier unconfirmed)
L3	Biconcave Negative	FCD1 (HOYA; coordinate equivalent; supplier unconfirmed)
C1	Optical Cement Layer	Optical cement (patent nd=1.56732, vd=42.8)
L4	Positive Meniscus	FD60 (HOYA; coordinate equivalent; supplier unconfirmed)
L5	Negative Meniscus	E-FDS1 (HOYA; coordinate equivalent; supplier unconfirmed)
L6	Biconvex Positive (2× Asph)	K-VC181 (SUMITA; coordinate equivalent; supplier unconfirmed)
L7	Negative Meniscus	NBFD15 (HOYA; coordinate equivalent; supplier unconfirmed)
C2	Optical Cement Layer	Optical cement (patent nd=1.56732, vd=42.8)
L8	Biconvex Positive	FCD705 (HOYA; coordinate equivalent; supplier unconfirmed)
L9	Biconvex Positive	FDS16-W (HOYA; coordinate equivalent; supplier unconfirmed)
L10	Biconcave Negative (2× Asph)	L-TIM28 (OHARA; coordinate equivalent; supplier unconfirmed)
L11	Biconvex Positive	FCD600 (HOYA; coordinate equivalent; supplier unconfirmed)
L12	Biconcave Negative	NBFD25 (HOYA; coordinate equivalent; supplier unconfirmed)
C3	Optical Cement Layer	Optical cement (patent nd=1.56732, vd=42.8)
L13	Biconvex Positive (1× Asph)	S-BSL7 (OHARA; coordinate equivalent; supplier unconfirmed)