Canon EF 17–40mm lens vs Sigma 10-20mm f/4-5.6 EX DC HSM
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Sigma 10-20mm f/4-5.6 EX DC HSM goes wider (10mm vs 17mm).
- Canon EF 17–40mm lens reaches further (40mm vs 20mm).
| Spec | EF 17–40mm lens | 10-20mm f/4-5.6 EX DC HSM |
|---|---|---|
| Brand | Canon | Sigma |
| Mount | Canon EF | Canon EF |
| Type | Zoom | Wide Zoom |
| Focal length | 17-40mm | 10-20mm (wider) |
| Max aperture | f/4.0 | f/4.0 |
| Released | 2003 | n/a |
| Weight g | 500 | n/a |
| Filter mm | 77 | n/a |
| Length mm | 96.8 | n/a |
| Diameter mm | 83.5 | n/a |
| Min focus m | 0.28 | n/a |
Canon EF 17–40mm lens
The Canon EF 17–40mm lens is a wide-angle zoom lens covering 17-40mm at f/4 for Canon EF mount cameras. It covers wide angles for landscapes, interiors and architecture.
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.