Fujifilm X Lenses

25 interactive lens diagrams

Fujifilm APS-C mirrorless mount, introduced in 2012 | APS-C digital

Fujifilm X mount was designed for APS-C mirrorless cameras rather than adapted down from full-frame. The system began with the X-Pro1 and the first XF primes in 2012, so the image circle, register, and body size expectations were matched directly to the smaller sensor from the beginning.

That commitment lets many XF lenses balance compact size with relatively ambitious apertures. Fast normals, small wide angles, stabilized zooms, and telephotos can be designed around APS-C field angles instead of carrying excess full-frame coverage.

The mount has become a broad APS-C ecosystem covering fast primes, compact pancakes, high-end zooms, macro lenses, and long telephotos. In this catalog, X-mount designs are useful for seeing how modern optical correction changes when designers optimize the whole system around APS-C rather than scaling a full-frame formula.

Mount interface

Flange focal distance 17.7 mm, bayonet mount. 0° at 12 o'clock from the camera front; the lens-side view is the horizontal mirror. Dotted strokes mark photo-scaled or schematic (not-to-scale) dimensions.

Fujifilm X mount — camera-side front view (base)Fujifilm X bayonet mount, camera-side front view. Flange focal distance 17.7 mm, nominal throat 44 mm. Profile fujifilm-x/base.
Camera-side front
Fujifilm X mount — lens-side rear view (base)Fujifilm X bayonet mount, lens-side rear view. Flange focal distance 17.7 mm, nominal throat 44 mm. Profile fujifilm-x/base.
Lens-side rear
Throat / openingMount ringBayonet lug / slotLock pin / notchIndex markElectrical contactScrews / sealsDatum & axis
CARL ZEISS TOUIT MAKRO-PLANAR T* 50mm f/2.8 Macro— 14 elements / 11 groups, f' = 51.52 mm patent design, FNo. = 2.88 patent designFUJIFILM FUJINON XF 16-55mm f/2.8 R LM WR— 17 ELEMENTS / 12 GROUPS, f = 16.5 – 53.4 mm (PATENT) / 16 – 55 mm (MARKETED), F/2.88 – F/2.74 – F/2.89 (PATENT); F/2.8 CONSTANT (MARKETED)FUJIFILM FUJINON XF 16-55mm f/2.8 R LM WR II— 16 elements / 11 groups, f = 16.50–53.40 mm patent design, F2.8 marketed / F2.88 designFUJIFILM FUJINON XF 16-80mm f/4 R OIS WR— 16 ELEMENTS / 12 GROUPS, f = 16.5–77.8 mm, F/4FUJIFILM FUJINON XF 18mm f/2 R— 8 ELEMENTS / 7 GROUPS, f ≈ 18.8 mm, F/2.06FUJIFILM FUJINON XF 200mm f/2 R LM OIS WR— 19 ELEMENTS / 14 GROUPS, f = 200 mm (200.0 marketed, 194.01 design), F/2FUJIFILM FUJINON XF 23mm f/1.4 R— 11 ELEMENTS / 8 GROUPS, f ≈ 23.7 mm, F/1.4FUJIFILM FUJINON XF 23mm f/1.4 R LM WR— 15 elements / 10 groups, Patent f = 23.62 mm scaled to 23.00 mm, F1.4 nominal / patent FNo 1.44FUJIFILM FUJINON XF 23mm f/2 R WR— 10 elements / 6 groups, f = 22.377 mm design; 23 mm marketed, F2.06 design; F2 marketedFUJIFILM FUJINON XF 23mm f/2.8 R WR— 23mm, f/2.8, 8 elements / 6 groupsFUJIFILM FUJINON XF 33mm f/1.4 R LM WR— 33 mm APS-C standard prime, 15 elements / 10 groups, 3 ED elements / 2 aspherical elementsFUJIFILM FUJINON XF 35mm f/1.4 R— 8 ELEMENTS / 6 GROUPS, f ≈ 36.17 mm, F/1.45FUJIFILM FUJINON XF 50-140mm f/2.8 R LM OIS WR— 23 ELEMENTS / 16 GROUPS, f = 50–140 mm (design 51.52–135.96 mm), F/2.8 CONSTANTFUJIFILM FUJINON XF 50mm f/1.0 R WR— 12 elements / 9 groups, 1 aspherical element (2 aspherical surfaces), 2 ED elementsFUJIFILM FUJINON XF 56mm f/1.2 R— 11 ELEMENTS / 8 GROUPS, f ≈ 56.99 mm, F/1.25FUJIFILM FUJINON XF 56mm f/1.2 R WR— 13 elements / 8 groups, f = 54.453 mm design; 56 mm marketed, F1.2 marketed; FNo. 1.24 designFUJIFILM FUJINON XF 60mm f/2.4 R Macro— 10 ELEMENTS / 8 GROUPS, f = 61.06 mm (design), F/2.48 (design) · F/2.4 (marketed)FUJIFILM FUJINON XF 80mm f/2.8 R LM OIS WR Macro— 16 elements / 12 groups, 1 aspherical (2 surfaces), 1 Super ED + 3 EDFUJIFILM FUJINON XF 90mm f/2 R LM WR— 11 ELEMENTS / 8 GROUPS, f ≈ 87.5 mm (marketed 90 mm), F/2.06 (marketed F/2.0)LAOWA 65mm f/2.8 2× Ultra Macro APO— 14 ELEMENTS / 10 GROUPS, f ≈ 66.0 mm (design) / 65 mm (marketed), F/2.9 (design) / F/2.8 (marketed)SIGMA 10-18mm f/2.8 DC DN | Contemporary— 13 elements / 10 groups, 10.30-17.50 mm design EFL, F2.8 marketed; F2.92 patentSIGMA 16mm f/1.4 DC DN | Contemporary— 16 elements / 13 groups, f = 16.446 mm design; 16 mm marketed, F/1.46 design; F1.4 marketedSIGMA 17-40mm f/1.8 DC | Art— 17 elements / 11 groups, 4 SLD / 4 aspherical elements, f = 17.55–38.70 mm designSIGMA 23mm f/1.4 DC DN | Contemporary— 13 elements / 10 groups, f = 22.31 mm design; 23 mm marketed, F1.46 design; F1.4 marketedVOIGTLÄNDER NOKTON 50mm f/1.2 X-Mount— 9 ELEMENTS / 8 GROUPS, f ≈ 48.5 mm, F/1.23