Both Panasonic G5 and Panasonic G85 have 16.0 MP resolution sensors but Panasonic G5's sensor is Four Thirds (17.3 x 13 mm ) and Panasonic G85's sensor is Four Thirds (17.3 x 13 mm ).
Since Panasonic G85's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Panasonic G5.
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 G5 and G85 sensor size comparison.
Panasonic G5 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 G5 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 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 |
Panasonic G85 |
71 |
22.8 bits |
12.5 Evs |
656 ISO |