Both Panasonic G6 and Panasonic G85 have Four Thirds sized 16.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
One other difference between these two cameras that is worth mentioning is that Panasonic G85's sensor doesn't have an anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moiré occurring in certain scenes.
Below you can see the G6 and G85 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic G6 and Panasonic G85 Cameras
Panasonic G6 and Panasonic G85 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 G6 and Panasonic G85 sensors have been tested by DxO and the results show that G85 has a better overall score of 71, 10 points higher compared to G6's score of 61.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Panasonic G6
61
21.3 bits
11.5 Evs
639 ISO
Panasonic G85
71
22.8 bits
12.5 Evs
656 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 G6
or the
Panasonic G85 ,
including hyperfocal distance.
