Canon RF 400mm F2.8 L IS USM vs Canon RF 600mm F11 IS STM
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Canon RF 400mm F2.8 L IS USM is faster by 3.9 stops (f/2.8 vs f/11.0), letting in more light.
- Canon RF 600mm F11 IS STM is lighter by 1960g.
- Canon RF 400mm F2.8 L IS USM goes wider (400mm vs 600mm).
- Canon RF 600mm F11 IS STM reaches further (600mm vs 400mm).
- Canon RF 400mm F2.8 L IS USM is the newer design (2021 vs 2020).
| Spec | RF 400mm F2.8 L IS USM | RF 600mm F11 IS STM |
|---|---|---|
| Brand | Canon | Canon |
| Mount | Canon RF | Canon RF |
| Type | Prime | Prime |
| Focal length | 400mm (wider) | 600mm |
| Max aperture | f/2.8 (faster) | f/11.0 |
| Released | 2021 | 2020 |
| Blades | 9 | n/a |
| Format | full-frame | full-frame |
| Groups | 13 | 7 |
| Af motor | USM | STM |
| Elements | 17 | 10 |
| Weight g | 2890.0 | 930.0 (lighter) |
| Length mm | 367.0 | 269.5 |
| Stabilized | Yes | Yes |
| Diameter mm | 163.0 | 93.0 |
| Min focus m | 2.5 (closer focusing) | 4.5 |
| Max magnification | 0.17 | 0.14 |
| Filter mm | n/a | 82 |
Canon RF 400mm F2.8 L IS USM
Canon's super-telephoto prime with stabilization and f/2.8 maximum aperture, at about 2.9kg, introduced in 2021. It is lighter than the EF 400mm f/2.8L IS III and aimed at pro sports and wildlife.
Pros
- f/2.8 aperture
- Image stabilization
- About 2.9kg
- Takes RF extenders
Cons
- Large
- Needs a monopod or gimbal
- Minimum focus of 2.5m
Canon RF 600mm F11 IS STM
A very compact super-telephoto for Canon RF cameras with a fixed f/11 aperture and diffractive optics. It collapses for transport.
Pros
- Compact and light (930 g)
- 600mm reach
- Image stabilization
Cons
- Fixed f/11 aperture
- Needs bright light