Both Sony A7c and Canon M100 have 24.0 MP resolution sensors but Sony A7c's sensor is Full frame (35.8 x 23.8 mm ) and Canon M100's sensor is APS-C (22.3 x 14.9 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 M100.
Below you can see the A7c and M100 sensor size comparison.
As seen above, Sony A7c has a 2.6x Larger sensor area than Canon M100. 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
Both Sony A7c and Canon M100 sensors have been tested by DxoMark. DxoMark 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. Of the two cameras that we are comparing, A7c has scored 95, 16 points higher than M100.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony A7c |
95 |
25.0 bits |
14.7 Evs |
3407 ISO |
Canon M100 |
79 |
23.5 bits |
13.0 Evs |
1272 ISO |