Sigma 17-40mm f/1.8 DC vs Tokina atx-m 11-18mm F2.8

Both are Fujifilm X lenses for APS-C. Here is what actually differs.

Sigma · 2025

17-40mm f/1.8 DC

f/1.8530 g

Full specs

Tokina

atx-m 11-18mm F2.8

f/2.8320 g

Check price Full specs

Pick the Sigma 17-40mm f/1.8 DC if

You need 1⅓ stops more light for low light or background blur (f/1.8 vs f/2.8)
You need more reach: 40mm vs 18mm at the long end
You want bigger close-ups: 0.21× vs 0.11× maximum magnification
You care about the shape of out-of-focus highlights: 11 aperture blades vs 9

Pick the Tokina atx-m 11-18mm F2.8 if

You want the lighter lens to carry: 210 g lighter (320 g vs 530 g)
You want a wider view: 11mm vs 17mm at the wide end
You shoot close-ups: it focuses down to 0.19 m vs 0.28 m
You want a compact lens: 74.4 mm vs 118.2 mm long

Spec differences

13 differences

Specifications that differ between the Sigma 17-40mm f/1.8 DC and the Tokina atx-m 11-18mm F2.8
	Sigma 17-40mm f/1.8 DC	Tokina atx-m 11-18mm F2.8
Brand	Sigma	Tokina
Type	Zoom	Wide Zoom
Focal length	17-40mm	11-18mm
Max aperture	f/1.8 1⅓ stops faster	f/2.8
Weight	530 g	320 g lighter
Length	118.2 mm	74.4 mm shorter
Diameter	72.9 mm	74.4 mm
Min focus distance	0.28 m	0.19 m closer
Max magnification	0.21× larger	0.11×
Aperture blades	11 more blades	9
Optical design	17 elements / 11 groups	13 elements / 11 groups
Weather sealing	Yes	not listed
Released	2025	not listed

4 identical specs hidden: mount, format, filter thread, image stabilization. Show all

Mount: Fujifilm X both
Format: APS-C both
Filter thread: 67 mm both
Image stabilization: No both

Our notes

Sigma 17-40mm f/1.8 DC

This 17-40mm f/1.8 APS-C fast wide-angle zoom lens from Sigma fits Fujifilm X mount cameras. It covers wide angles for landscapes, interiors and architecture.

Our notes