Canon M100 has a
24.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features DIGIC 7 processor. On the other hand, Samsung NX20 has a
20.0MP APS-C (23.5 x 15.7 mm ) sized CMOS sensor .
Below you can see the M100 and NX20 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon M100 and Samsung NX20 Cameras
As seen above, Samsung NX20 has a 1.1x 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 Canon M100 and Samsung NX20 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, M100 has scored 79, 4 points higher than NX20.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon M100
79
23.5 bits
13.0 Evs
1272 ISO
Samsung NX20
75
23.4 bits
12.9 Evs
785 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 M100
or the
Samsung NX20 ,
including hyperfocal distance.