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, Canon G1 X II has a
13.0MP 1.5-inch (18.7 x 14 mm ) sized CMOS sensor and features Digic 6 processor.
Samsung NX30's sensor provides 7MP more than Canon G1 X II's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the NX30 and G1 X MII sensor size comparison.
Sensor Size and Resolution Comparison image of Samsung NX30 and Canon G1 X II Cameras
As seen above, Samsung NX30 has a 1.4x Larger sensor area than Canon G1 X II. 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
Both Samsung NX30 and Canon G1 X II sensors have been tested by DxoMark. DxoMark 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. Of the two cameras that we are comparing, NX30 has scored 77, 19 points higher than G1 X MII.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Samsung NX30
77
23.5 bits
12.4 Evs
1014 ISO
Canon G1 X II
58
21.5 bits
10.8 Evs
581 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 NX30
or the
Canon G1 X II ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(APS-C versus 1.5-inch),
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.