Canon M has a
18.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features Digic 5 processor. On the other hand, Sony NEX-3N has a
16.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Bionz processor.
Below you can see the M and NEX-3N sensor size comparison.
Sensor Size and Resolution Comparison image of Canon M and Sony NEX-3N Cameras
As seen above, Sony NEX-3N has a 1.1x Larger sensor area than Canon M. 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 M and Sony NEX-3N sensors have been tested by DxO and the results show that NEX-3N has a better overall score of 74, 9 points higher compared to M's score of 65.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon M
65
22.1 bits
11.2 Evs
827 ISO
Sony NEX-3N
74
22.8 bits
12.5 Evs
1067 ISO
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Canon M
or the
Sony NEX-3N ,
including hyperfocal distance.