Sony RX10 II has a
20.0MP 1″ (13.2 x 8.8 mm ) sized Stacked BSI-CMOS sensor and features Bionz X processor. On the other hand, Olympus E-M10 II has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features TruePic VII processor.
Below you can see the RX10 II and E-M10 II sensor size comparison.
As seen above, Olympus E-M10 II has a 1.9x Larger sensor area than Sony RX10 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
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. Sony RX10 II and Olympus E-M10 II sensors have been tested by DxO and the results show that E-M10 II has a better overall score of 73, 3 points higher compared to RX10 II's score of 70.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony RX10 II |
70 |
23.0 bits |
12.6 Evs |
531 ISO |
Olympus E-M10 II |
73 |
23.1 bits |
12.5 Evs |
842 ISO |