Canon EF 24-70mm f/2.8L II USM vs Sigma 17-50mm f/2.8 EX DC OS HSM
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Sigma 17-50mm f/2.8 EX DC OS HSM is lighter by 240g.
- Sigma 17-50mm f/2.8 EX DC OS HSM goes wider (17mm vs 24mm).
- Canon EF 24-70mm f/2.8L II USM reaches further (70mm vs 50mm).
| Spec | EF 24-70mm f/2.8L II USM | 17-50mm f/2.8 EX DC OS HSM |
|---|---|---|
| Brand | Canon | Sigma |
| Mount | Canon EF | Canon EF |
| Type | Zoom | Zoom |
| Focal length | 24-70mm | 17-50mm (wider) |
| Max aperture | f/2.8 | f/2.8 |
| Released | 2012 | n/a |
| Blades | 9 | 7 |
| Format | full-frame | aps-c |
| Groups | 13 | 13 |
| Af motor | USM | HSM |
| Elements | 18 | 17 |
| Weight g | 805.0 | 565 (lighter) |
| Filter mm | 82 | 77 |
| Length mm | 113.0 | 91.8 |
| Diameter mm | 88.5 | 83.5 |
| Min focus m | 0.38 | 0.28 (closer focusing) |
| Max magnification | 0.21 | 0.2 |
| Stabilized | n/a | Yes |
Canon EF 24-70mm f/2.8L II USM
The second generation of Canon's pro standard zoom, with a constant f/2.8 aperture and weather sealing for demanding full-frame work.
Pros
- Constant f/2.8
- Sharp across the zoom range
- Weather-sealed
- Wide-to-short-tele range
Cons
- No image stabilization
- Heavy (about 800 g)
- Large 82mm filter thread
Sigma 17-50mm f/2.8 EX DC OS HSM
A constant f/2.8 standard zoom for APS-C DSLRs with Optical Stabilizer and a hypersonic motor. It weighs about 565 g.
Pros
- Constant f/2.8
- Optical Stabilizer
- HSM autofocus
Cons
- APS-C only
- Older design