Panasonic GH2 has a 16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine FHD processor. On the other hand, Panasonic GH1 has a 12.0MP Four Thirds (18.89 x 14.48 mm ) sized CMOS sensor and features Venus Engine HD processor.
Below you can see the GH2 and GH1 sensor size comparison.
![Panasonic GH2 vs Panasonic GH1 Sensor Size Comparison]()
Sensor Size and Resolution Comparison image of Panasonic GH2 and Panasonic GH1 Cameras
As seen above, Panasonic GH1 has a 1.2x Larger sensor area than Panasonic GH2. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in 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 GH2 and Panasonic GH1 sensors have been tested by DxO and the results show that GH1 has a better overall score of 64, 4 points higher compared to GH2's score of 60.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Panasonic GH2 |
60 |
21.2 bits |
11.3 Evs |
655 ISO |
|
Panasonic GH1 |
64 |
21.6 bits |
11.6 Evs |
772 ISO |