Canon G12 has a 10.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized CCD sensor and features Digic 4 processor. On the other hand, Canon G15 has a 12.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized CMOS sensor and features Digic 5 processor.
Below you can see the G12 and G15 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon G12 and Canon G15 Cameras
Canon G12 and Canon G15 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 Canon G12 has 20% larger pixel area compared to Canon G15, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
DxOMark Sensor Scores
Both Canon G12 and Canon G15 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, G12 has scored 47, 1 points higher than G15.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon G12 |
47 |
20.4 bits |
11.2 Evs |
161 ISO |
Canon G15 |
46 |
19.9 bits |
11.5 Evs |
165 ISO |