Canon 1D X III has a
20.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Digic X processor. On the other hand, Panasonic G2 has a
12.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine HD II processor.
Canon 1D X III's sensor provides 8MP more than Panasonic G2'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 1D X MIII and G2 sensor size comparison.
As seen above, Canon 1D X III has a 3.8x Larger sensor area than Panasonic G2. 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
Both Canon 1D X III and Panasonic G2 sensors have been tested by DxoMark. DxoMark 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. Of the two cameras that we are comparing, 1D X MIII has scored 91, 38 points higher than G2.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon 1D X III |
91 |
24.2 bits |
14.5 Evs |
3248 ISO |
Panasonic G2 |
53 |
21.2 bits |
10.3 Evs |
493 ISO |