Both Samsung NX20 and Samsung NX30 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 NX20 and NX30 sensor size comparison.
Samsung NX20 and Samsung NX30 have the same sensor sizes so they will provide same level of control over the depth of field when used with 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. Samsung NX20 and Samsung NX30 sensors have been tested by DxO and the results show that NX30 has a better overall score of 77, 2 points higher compared to NX20's score of 75.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Samsung NX20 |
75 |
23.4 bits |
12.9 Evs |
785 ISO |
Samsung NX30 |
77 |
23.5 bits |
12.4 Evs |
1014 ISO |