Panasonic GM1 has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor . On the other hand, Sony A6500 has a
24.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Bionz X processor.
Sony A6500's sensor provides 8MP more than Panasonic GM1's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the GM1 and A6500 sensor size comparison.
As seen above, Sony A6500 has a 1.6x Larger sensor area than Panasonic GM1. 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 GM1 and Sony A6500 sensors have been tested by DxO and the results show that A6500 has a better overall score of 85, 19 points higher compared to GM1's score of 66.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Panasonic GM1 |
66 |
22.3 bits |
11.7 Evs |
660 ISO |
Sony A6500 |
85 |
24.5 bits |
13.7 Evs |
1405 ISO |