Compare cameras
Canon EOS R vs Sony a7R III
The Canon EOS R and the Sony a7R III side by side, computed from this guide's catalogue.
Which to pick
Pick the Sony a7R III if you want more resolution, for cropping and big prints (42.4 against 30.3 MP); stabilisation in the body, which steadies every lens; and more lenses made for it in this guide (278 against 99). On these specs the Canon EOS R has no clear advantage: choose it if the price, the handling or a lens you own decides it. If you already own Canon RF or Sony E lenses, the camera on that mount saves you buying them again.
Still torn? Ask the guide about the Canon EOS R and the Sony a7R III
Specs side by side
| Spec | Canon EOS R | Sony a7R III |
|---|---|---|
| Maker | Canon | Sony |
| Mount | Canon RF | Sony E |
| Sensor | Full frame, 36 x 24 mm | Full frame, 36 x 24 mm |
| Crop factor | 1× | 1× |
| Resolution | 30.3 MP | 42.4 MPmore detail |
| Stabilisation | none | in the bodystabilised |
| Announced | 2018 | 2017 |
| Type | mirrorless camera | mirrorless camera |
| Weight | 660 g | 657 g |
| Lenses in this guide | 99 for its sensor, 45 more with a crop | 278 for its sensor, 125 more with a cropmore lenses |
Sensor size
Crop factors: Canon EOS R 1×, Sony a7R III 1×.
What a 50mm frames like
Both have the same sensor size, so a 50mm lens frames the same on each: like 50mm on full frame.
Lenses
Different mounts (Canon RF and Sony E): a lens for one does not fit the other without an adapter. 51 lens designs in this guide are made in both mounts, mostly from third-party makers.
The Canon EOS R: 99 Canon RF lenses in this guide cover its sensor. The Sony a7R III: 278 Sony E lenses in this guide cover its sensor.