FUJIFILM FUJINON-Z 43-75mm f/3.5-4.5 — Optical Cross-Section & Ray Tracing

Home / Lenses / Fujifilm / FUJIFILM FUJINON-Z 43-75mm f/3.5-4.5FUJIFILM FUJINON-Z 43-75mm f/3.5-4.5US 4,195,912↗ — Yoshikazu Doi, Yutaka Sakai, Kazunori Ohno
7 elements / 7 groups
43-75mm marketed; 42.99-71.47mm computed
f/3.5-4.5
2ω = 52°-33° patent field
All spherical
Focus MechanismManual push-pull zoom with twist focus; close-focus optical spacing is not patent-published, so this file models the infinity zoom prescription only.
Optical Elements (7 physical)ElementTypeGlass
L1Negative MeniscusS-TIM28 / 689311 dense flint equivalent (OHARA current catalog; vendor not patent-disclosed)
L2Negative MeniscusBACD15 / 623581 barium crown equivalent (HOYA catalog; vendor not patent-disclosed)
L3Biconvex PositiveS-TIM28 / 689311 dense flint equivalent (OHARA current catalog; vendor not patent-disclosed)
L4Positive MeniscusS-LAL14 / 697556 lanthanum crown equivalent (vendor not patent-disclosed)
L5Positive Meniscus678555 lanthanum crown equivalent, LAK12/LAC12 class (vendor not patent-disclosed)
L6Negative MeniscusFD60 / SF6-class 805255 dense flint equivalent (vendor not patent-disclosed)
L7Biconvex PositiveH-ZF39 / 667331 dense flint equivalent (CDGM catalog-equivalent; vendor uncertain)

Element	Type	Glass
L1	Negative Meniscus	S-TIM28 / 689311 dense flint equivalent (OHARA current catalog; vendor not patent-disclosed)
L2	Negative Meniscus	BACD15 / 623581 barium crown equivalent (HOYA catalog; vendor not patent-disclosed)
L3	Biconvex Positive	S-TIM28 / 689311 dense flint equivalent (OHARA current catalog; vendor not patent-disclosed)
L4	Positive Meniscus	S-LAL14 / 697556 lanthanum crown equivalent (vendor not patent-disclosed)
L5	Positive Meniscus	678555 lanthanum crown equivalent, LAK12/LAC12 class (vendor not patent-disclosed)
L6	Negative Meniscus	FD60 / SF6-class 805255 dense flint equivalent (vendor not patent-disclosed)
L7	Biconvex Positive	H-ZF39 / 667331 dense flint equivalent (CDGM catalog-equivalent; vendor uncertain)