Both Panasonic G5 and Olympus E-M10 II 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 G5 and E-M10 II sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic G5 and Olympus E-M10 II Cameras
Panasonic G5 and Olympus E-M10 II 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 G5 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, 12 points higher compared to G5's score of 61.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Panasonic G5
61
21.4 bits
11.6 Evs
618 ISO
Olympus E-M10 II
73
23.1 bits
12.5 Evs
842 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
Panasonic G5
or the
Olympus E-M10 II ,
including hyperfocal distance.
