Both Panasonic GH3 and Panasonic G85 have 16.0 MP resolution sensors but Panasonic GH3'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 GH3.
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 GH3 and G85 sensor size comparison.
Panasonic GH3 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
At Camera Decision, we also look at Dxo Mark sensors when available as we think it is a good indicator of image quality.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Panasonic GH3 |
71 |
22.7 bits |
12.4 Evs |
812 ISO |
Panasonic G85 |
71 |
22.8 bits |
12.5 Evs |
656 ISO |