Panasonic GH4 has a 16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine IX processor. On the other hand, Panasonic GH5 has a 20.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine processor.
One other difference between these two cameras that is worth mentioning is that Panasonic GH5'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 GH4 and GH5 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic GH4 and Panasonic GH5 Cameras
Panasonic GH4 and Panasonic GH5 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. On the other hand, since Panasonic GH4 has 26% larger pixel area compared to Panasonic GH5, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
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 GH4 and Panasonic GH5 sensors have been tested by DxO and the results show that GH5 has a better overall score of 77, 3 points higher compared to GH4's score of 74.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Panasonic GH4 |
74 |
23.2 bits |
12.8 Evs |
791 ISO |
|
Panasonic GH5 |
77 |
23.9 bits |
13.0 Evs |
807 ISO |