Canon 650D has a
18.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features Digic 5 processor. On the other hand, Samsung NX30 has a
20.0MP APS-C (23.5 x 15.7 mm ) sized CMOS sensor and features DRIMeIV processor.
Below you can see the 650D and NX30 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 650D and Samsung NX30 Cameras
As seen above, Samsung NX30 has a 1.1x Larger sensor area than Canon 650D. 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. Canon 650D and Samsung NX30 sensors have been tested by DxO and the results show that NX30 has a better overall score of 77, 15 points higher compared to 650D's score of 62.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon 650D
62
21.7 bits
11.2 Evs
722 ISO
Samsung NX30
77
23.5 bits
12.4 Evs
1014 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
Canon 650D
or the
Samsung NX30 ,
including hyperfocal distance.
