Canon S120 has a
12.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized BSI-CMOS sensor and features Digic 6 processor. On the other hand, Canon 1D MIII has a
10.0MP APS-H (28.7 x 18.7 mm ) sized CMOS sensor .
Below you can see the S120 and 1D MIII sensor size comparison.
As seen above, Canon 1D MIII has a 12.9x Larger sensor area than Canon S120. 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 S120 and Canon 1D MIII sensors have been tested by DxO and the results show that 1D MIII has a better overall score of 71, 15 points higher compared to S120's score of 56.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon S120 |
56 |
21.3 bits |
11.9 Evs |
246 ISO |
Canon 1D MIII |
71 |
22.7 bits |
11.7 Evs |
1078 ISO |