Canon G12 has a 10.0MP 1/1.7" (7.44 x 5.58 mm ) sized CCD sensor and features Digic 4 processor. On the other hand, Fujifilm X100 has a 12.0MP APS-C (23.6 x 15.8 mm ) sized CMOS sensor and features EXR processor.
One other difference between these two cameras that is worth mentioning is that Fujifilm X100'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 moire occurring in certain scenes.
Below you can see the G12 and X100 sensor size comparison.
![Canon G12 vs Fujifilm X100 Sensor Size Comparison]()
Sensor Size and Resolution Comparison image of Canon G12 and Fujifilm X100 Cameras
As seen above, Fujifilm X100 has a 9.0x Larger sensor area than Canon G12. 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. Canon G12 and Fujifilm X100 sensors have been tested by DxO and the results show that X100 has a better overall score of 73, 26 points higher compared to G12's score of 47.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Canon G12 |
47 |
20.4 bits |
11.2 Evs |
161 ISO |
|
Fujifilm X100 |
73 |
22.9 bits |
12.4 Evs |
1001 ISO |