Canon EF 11–24mm lens vs Sigma 10-20mm f/3.5 EX DC HSM

Both are Canon EF wide zoom lenses. Here is what actually differs.

Canon · 2015

Pick the Canon EF 11–24mm lens if

You need more reach: 24mm vs 20mm at the long end

Pick the Sigma 10-20mm f/3.5 EX DC HSM if

You need ⅓ stop more light for low light or background blur (f/3.5 vs f/4)
You want the lighter lens to carry: 660 g lighter (520 g vs 1180 g)
You want a wider view: 10mm vs 11mm at the wide end
You shoot close-ups: it focuses down to 0.24 m vs 0.28 m
You want a compact lens: 88.2 mm vs 132 mm long
Our notes say it suits: Landscapes on APS-C, architecture, interiors

Spec differences

14 differences

Specifications that differ between the Canon EF 11–24mm lens and the Sigma 10-20mm f/3.5 EX DC HSM
	Canon EF 11–24mm lens	Sigma 10-20mm f/3.5 EX DC HSM
Brand	Canon	Sigma
Format	not listed	APS-C
Focal length	11-24mm	10-20mm
Max aperture	f/4	f/3.5 ⅓ stop faster
Weight	1180 g	520 g lighter
Length	132 mm	88.2 mm shorter
Diameter	108 mm	87.3 mm slimmer
Filter thread	not listed	82 mm
Min focus distance	0.28 m	0.24 m closer
Max magnification	not listed	0.15×
Aperture blades	not listed	7
Optical design	not listed	13 elements / 10 groups
Autofocus motor	not listed	HSM
Released	2015	not listed

3 identical specs hidden: mount, type, image stabilization. Show all

Mount: Canon EF both
Type: Wide Zoom both
Image stabilization: No both

Our notes

Canon EF 11–24mm lens

Canon EF 11–24mm lens: a wide-angle zoom lens with a 11-24mm focal length and a maximum aperture of f/4, made for Canon EF mount cameras. It covers wide angles for landscapes, interiors and architecture.

Our notes