Canon EF 8-15mm f/4L Fisheye USM vs Sigma 10-20mm f/4-5.6 EX DC HSM

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

Canon · 2011

Pick the Canon EF 8-15mm f/4L Fisheye USM if

You want a wider view: 8mm vs 10mm at the wide end
You shoot close-ups: it focuses down to 0.15 m vs 0.24 m
You want bigger close-ups: 0.34× vs 0.15× maximum magnification
You shoot full frame: the Sigma 10-20mm f/4-5.6 EX DC HSM is made for APS-C
You care about the shape of out-of-focus highlights: 7 aperture blades vs 6
Our notes say it suits: Creative fisheye shots, action sports, immersive video and VR

Pick the Sigma 10-20mm f/4-5.6 EX DC HSM if

You need more reach: 20mm vs 15mm at the long end

Spec differences

14 differences

Specifications that differ between the Canon EF 8-15mm f/4L Fisheye USM and the Sigma 10-20mm f/4-5.6 EX DC HSM
	Canon EF 8-15mm f/4L Fisheye USM	Sigma 10-20mm f/4-5.6 EX DC HSM
Brand	Canon	Sigma
Type	Fisheye	Wide Zoom
Format	Full frame	APS-C
Focal length	8-15mm	10-20mm
Weight	540 g	not listed
Length	83 mm	not listed
Diameter	78.5 mm	not listed
Filter thread	not listed	77 mm
Min focus distance	0.15 m closer	0.24 m
Max magnification	0.34× larger	0.15×
Aperture blades	7 more blades	6
Optical design	14 elements / 11 groups	14 elements / 10 groups
Autofocus motor	USM	HSM
Released	2011	not listed

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

Mount: Canon EF both
Max aperture: f/4 both
Image stabilization: No both

Our notes

Canon EF 8-15mm f/4L Fisheye USM

A zoom fisheye giving a circular image at 8mm and a full-frame diagonal fisheye at 15mm on full-frame bodies. Weather-sealed L design.

Pros

Zoom fisheye range
Circular image at 8mm
Weather-sealed
Crisp optics

Cons

Fisheye distortion limits general use
Exposed bulbous front element
No front filter thread

Our notes

Sigma 10-20mm f/4-5.6 EX DC HSM

A 10-20mm f/4-5.6 APS-C wide-angle zoom lens, the Sigma 10-20mm f/4-5.6 EX DC HSM is designed for Canon EF mount bodies, with Hyper Sonic Motor autofocus. It covers wide angles for landscapes, interiors and architecture.