Both Canon M3 and Sony A7c have 24.0 MP resolution sensors but Canon M3's sensor is APS-C (22.3 x 14.9 mm ) and Sony A7c's sensor is Full frame (35.8 x 23.8 mm ).
Since Sony A7c's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Canon M3.
Below you can see the M3 and A7c sensor size comparison.
![Canon M3 vs Sony A7c Sensor Size Comparison]()
Sensor Size and Resolution Comparison image of Canon M3 and Sony A7c Cameras
As seen above, Sony A7c has a 2.6x Larger sensor area than Canon M3. 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. Canon M3 and Sony A7c sensors have been tested by DxO and the results show that A7c has a better overall score of 95, 23 points higher compared to M3's score of 72.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Canon M3 |
72 |
22.8 bits |
11.8 Evs |
1169 ISO |
|
Sony A7c |
95 |
25.0 bits |
14.7 Evs |
3407 ISO |