Canon RF 14-35mm F4 L IS USM vs Canon RF 15-35mm F2.8 L IS USM
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Canon RF 15-35mm F2.8 L IS USM is faster by 1 stop (f/2.8 vs f/4.0), letting in more light.
- Canon RF 14-35mm F4 L IS USM is lighter by 300g.
- Canon RF 14-35mm F4 L IS USM goes wider (14mm vs 15mm).
- Canon RF 14-35mm F4 L IS USM is the newer design (2021 vs 2019).
| Spec | RF 14-35mm F4 L IS USM | RF 15-35mm F2.8 L IS USM |
|---|---|---|
| Brand | Canon | Canon |
| Mount | Canon RF | Canon RF |
| Type | Wide Zoom | Wide Zoom |
| Focal length | 14-35mm (wider) | 15-35mm |
| Max aperture | f/4.0 | f/2.8 (faster) |
| Released | 2021 | 2019 |
| Blades | 9 | 9 |
| Format | full-frame | full-frame |
| Groups | 12 | 12 |
| Af motor | USM | USM |
| Elements | 16 | 16 |
| Weight g | 540.0 (lighter) | 840.0 |
| Filter mm | 77 | 82 |
| Length mm | 99.8 | 126.8 |
| Stabilized | Yes | Yes |
| Diameter mm | 84.1 | 88.5 |
| Min focus m | 0.2 (closer focusing) | 0.28 |
| Max magnification | 0.38 | 0.21 |
Canon RF 14-35mm F4 L IS USM
The RF 14-35mm F4 L IS USM is a compact stabilized wide zoom for Canon RF full-frame cameras. Starts at 14mm and keeps f/4 throughout.
Pros
- Wide 14mm start
- Compact and light (540 g)
- Image stabilization
- Constant f/4
Cons
- Only f/4
- Relies on software lens correction
- Less light than the 15-35 f/2.8
Canon RF 15-35mm F2.8 L IS USM
A wide-angle zoom for Canon RF full-frame cameras with a constant f/2.8 aperture and image stabilization, for landscape, event and video work.
Pros
- Constant f/2.8
- Image stabilization
- Weather-sealed L build
- Sharp across the frame
Cons
- Heavy for a wide zoom (840 g)
- 82mm filter thread
- Relies on in-camera correction