Canon RF 15-30mm F4.5-6.3 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 2.6 stops (f/1.8 vs f/4.5), letting in more light.
- Canon RF 15-30mm F4.5-6.3 IS STM goes wider (15mm vs 17mm).
- Sigma 17-40mm f/1.8 DC reaches further (40mm vs 30mm).
| Spec | RF 15-30mm F4.5-6.3 IS STM | 17-40mm f/1.8 DC |
|---|---|---|
| Brand | Canon | Sigma |
| Mount | Canon RF | Canon RF |
| Type | Wide Zoom | Zoom |
| Focal length | 15-30mm (wider) | 17-40mm |
| Max aperture | f/4.5 | f/1.8 (faster) |
| Released | 2022 | n/a |
| Blades | 7 | 11 |
| Format | full-frame | aps-c |
| Groups | 11 | 11 |
| Af motor | STM | n/a |
| Elements | 13 | 17 |
| Weight g | 390.0 | n/a |
| Filter mm | 67 | n/a |
| Length mm | 88.4 | 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 15-30mm F4.5-6.3 IS STM
A wide-angle zoom for Canon RF full-frame bodies with stabilization and a stepping motor. Small and light.
Pros
- Compact and light (390 g)
- Image stabilization
- STM focusing
- 67mm filter thread
Cons
- Slow variable aperture
- Less sharp than the L zooms
- Relies on in-camera correction
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.