Olympus E-M10 has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features TruePic VII processor. On the other hand, Sony A3000 has a
20.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features BIONZ processor.
Below you can see the E-M10 and A3000 sensor size comparison.
As seen above, Sony A3000 has a 1.6x Larger sensor area than Olympus E-M10. 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. Olympus E-M10 and Sony A3000 sensors have been tested by DxO and the results show that A3000 has a better overall score of 78, 6 points higher compared to E-M10's score of 72.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Olympus E-M10 |
72 |
22.8 bits |
12.3 Evs |
884 ISO |
Sony A3000 |
78 |
23.7 bits |
12.8 Evs |
1068 ISO |