Samsung NX30 has a 20.0MP APS-C (23.5 x 15.7 mm ) sized CMOS sensor and features DRIMeIV processor. On the other hand, Sony A9 II has a 24.0MP Full frame (35.6 x 23.8 mm ) sized BSI-CMOS sensor and features BIONZ X processor.
Below you can see the NX30 and A9 II sensor size comparison.
Sensor Size and Resolution Comparison image of Samsung NX30 and Sony A9 II Cameras
As seen above, Sony A9 II has a 2.3x Larger sensor area than Samsung NX30. 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. Samsung NX30 and Sony A9 II sensors have been tested by DxO and the results show that A9 II has a better overall score of 93, 16 points higher compared to NX30's score of 77.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Samsung NX30 |
77 |
23.5 bits |
12.4 Evs |
1014 ISO |
Sony A9 II |
93 |
25.0 bits |
14.0 Evs |
3434 ISO |