Compare cameras
Canon EOS R3 vs Sony a1
The Canon EOS R3 and the Sony a1 side by side, computed from this guide's catalogue.
Which to pick
Pick the Sony a1 if you want more resolution, for cropping and big prints (50.1 against 24.1 MP); more lenses made for it in this guide (278 against 99); and a lighter body (737 g against 1015 g). On these specs the Canon EOS R3 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 R3 and the Sony a1
Specs side by side
| Spec | Canon EOS R3 | Sony a1 |
|---|---|---|
| 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 | 24.1 MP | 50.1 MPmore detail |
| Stabilisation | in the body | in the body |
| Announced | 2021 | 2021 |
| Type | mirrorless camera | mirrorless camera |
| Weight | 1015 g | 737 glighter |
| 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 R3 1×, Sony a1 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 R3: 99 Canon RF lenses in this guide cover its sensor. The Sony a1: 278 Sony E lenses in this guide cover its sensor.