Samsung NX200 has a
20.0MP APS-C (23.5 x 15.7 mm ) sized CMOS sensor . On the other hand, Canon R3 has a
24.0MP Full frame (36 x 24 mm ) sized Stacked CMOS sensor and features Digic X processor.
Below you can see the NX200 and R3 sensor size comparison.
Sensor Size and Resolution Comparison image of Samsung NX200 and Canon R3 Cameras
As seen above, Canon R3 has a 2.3x Larger sensor area than Samsung NX200. 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 NX200 and Canon R3 sensors have been tested by DxO and the results show that R3 has a better overall score of 96, 27 points higher compared to NX200's score of 69.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Samsung NX200
69
22.6 bits
12.6 Evs
618 ISO
Canon R3
96
25.0 bits
14.7 Evs
4086 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 NX200
or the
Canon R3 ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(APS-C versus Full frame),
so compare them at the same framing rather than the same focal length.
Put the same focal length on the smaller sensor and it will show less depth of
field, not more, because it also crops tighter. The calculator shows the
full frame equivalent focal length for each body so you can match the framing.