Both Samsung NX2000 and Canon 70D have APS-C sized 20.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the NX2000 and 70D sensor size comparison.
Sensor Size and Resolution Comparison image of Samsung NX2000 and Canon 70D Cameras
Samsung NX2000 and Canon 70D have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
DxOMark Sensor Scores
Both Samsung NX2000 and Canon 70D 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, NX2000 has scored 75, 7 points higher than 70D.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Samsung NX2000
75
23.4 bits
12.3 Evs
908 ISO
Canon 70D
68
22.5 bits
11.6 Evs
926 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
Samsung NX2000
or the
Canon 70D ,
including hyperfocal distance.
