Canon R has a 30.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features DIGIC 8 processor. On the other hand, Canon R3 has a 24.0MP Full frame (36 x 24 mm ) sized Stacked CMOS sensor and features Digic X processor.
Canon R's sensor provides 6MP more than Canon R3's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the EOS R and R3 sensor size comparison.
![Canon R vs Canon R3 Sensor Size Comparison]()
Sensor Size and Resolution Comparison image of Canon R and Canon R3 Cameras
Canon R and Canon R3 have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture. On the other hand, since Canon R3 has 25% larger pixel area (36.00µm2 vs 28.69µm2) compared to Canon R, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
DxOMark Sensor Scores
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. It scores camera sensors for color depth (DXO Portrait), dynamic range (DXO Landscape) and low-light sensitivity (DXO Sports), and also gives them an overall score. Canon R and Canon R3 sensors have been tested by DxO and the results show that R3 has a better overall score of 96, 7 points higher compared to EOS R's score of 89.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Canon R |
89 |
24.5 bits |
13.5 Evs |
2742 ISO |
|
Canon R3 |
96 |
25.0 bits |
14.7 Evs |
4086 ISO |