Panasonic G3 has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine FHD processor. On the other hand, Canon R5 has a
45.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Digic X processor.
Canon R5's sensor provides 29MP more than Panasonic G3'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 G3 and R5 sensor size comparison.
As seen above, Canon R5 has a 3.8x Larger sensor area than Panasonic G3. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
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. Panasonic G3 and Canon R5 sensors have been tested by DxO and the results show that R5 has a better overall score of 95, 39 points higher compared to G3's score of 56.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Panasonic G3 |
56 |
21.0 bits |
10.6 Evs |
667 ISO |
Canon R5 |
95 |
25.3 bits |
14.6 Evs |
3042 ISO |