Canon RF 24-105mm F4-7.1 IS STM vs Sigma 17-40mm f/1.8 DC
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Sigma
17-40mm f/1.8 DC
Verdict at a glance
- Sigma 17-40mm f/1.8 DC is faster by 2.3 stops (f/1.8 vs f/4.0), letting in more light.
- Sigma 17-40mm f/1.8 DC goes wider (17mm vs 24mm).
- Canon RF 24-105mm F4-7.1 IS STM reaches further (105mm vs 40mm).
| Spec | RF 24-105mm F4-7.1 IS STM | 17-40mm f/1.8 DC |
|---|---|---|
| Brand | Canon | Sigma |
| Mount | Canon RF | Canon RF |
| Type | Zoom | Zoom |
| Focal length | 24-105mm | 17-40mm (wider) |
| Max aperture | f/4.0 | f/1.8 (faster) |
| Released | 2020 | n/a |
| Blades | 7 | 11 |
| Format | full-frame | aps-c |
| Groups | 11 | 11 |
| Af motor | STM | n/a |
| Elements | 13 | 17 |
| Weight g | 395.0 | n/a |
| Filter mm | 67 | n/a |
| Length mm | 88.8 | n/a |
| Stabilized | Yes | n/a |
| Diameter mm | 76.6 | n/a |
| Min focus m | n/a | 0.28 |
| Max magnification | n/a | 0.21 |
Canon RF 24-105mm F4-7.1 IS STM
A compact standard zoom for Canon RF full-frame cameras with stabilization and a stepping motor. Variable aperture.
Pros
- Small and light (395 g)
- Image stabilization
- Wide zoom range
Cons
- Variable aperture to f/7.1
- Not an L-series build
- Less sharp than the L
Sigma 17-40mm f/1.8 DC
This 17-40mm f/1.8 APS-C fast wide-angle zoom lens from Sigma fits Canon RF mount cameras. It covers wide angles for landscapes, interiors and architecture.