Both Samsung NX2000 and Ricoh G900SE II have 20.0 MP resolution sensors but Samsung NX2000's sensor is APS-C (23.5 x 15.7 mm ) and Ricoh G900SE II's sensor is 1/2.3 inch (6.17 x 4.55 mm ).
Since Samsung NX2000's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Ricoh G900SE II.
Below you can see the NX2000 and G900SE II sensor size comparison.
Sensor Size and Resolution Comparison image of Samsung NX2000 and Ricoh G900SE II Cameras
As seen above, Samsung NX2000 has a 13.1x Larger sensor area than Ricoh G900SE 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.
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 NX2000
or the
Ricoh G900SE II ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(APS-C versus 1/2.3 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.
