Both Panasonic G3 and Olympus E-M10 have Four Thirds sized 16.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the G3 and E-M10 sensor size comparison.
Panasonic G3 and Olympus E-M10 have the same sensor sizes so they will provide same level of control over the depth of field when used with 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. Panasonic G3 and Olympus E-M10 sensors have been tested by DxO and the results show that E-M10 has a better overall score of 72, 16 points higher compared to G3's score of 56.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Panasonic G3 |
56 |
21.0 bits |
10.6 Evs |
667 ISO |
Olympus E-M10 |
72 |
22.8 bits |
12.3 Evs |
884 ISO |