Samsung NX1000 has a
20.0MP APS-C (23.5 x 15.7 mm ) sized CMOS sensor . On the other hand, Sony a5100 has a
24.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Bionz X processor.
Below you can see the NX1000 and a5100 sensor size comparison.
Sensor Size and Resolution Comparison image of Samsung NX1000 and Sony a5100 Cameras
Samsung NX1000 and Sony a5100 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
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 NX1000 and Sony a5100 sensors have been tested by DxO and the results show that a5100 has a better overall score of 80, 8 points higher compared to NX1000's score of 72.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Samsung NX1000
72
22.8 bits
12.4 Evs
840 ISO
Sony a5100
80
23.8 bits
12.7 Evs
1347 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 NX1000
or the
Sony a5100 ,
including hyperfocal distance.