Canon S90 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, Olympus XZ-2 iHS has a
12.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized CMOS sensor .
Below you can see the S90 and XZ-2 iHS sensor size comparison.
Canon S90 and Olympus XZ-2 iHS 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 S90 has 18% larger pixel area compared to Olympus XZ-2 iHS, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
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 S90 and Olympus XZ-2 iHS sensors have been tested by DxO and the results show that XZ-2 iHS has a better overall score of 49, 3 points higher compared to S90's score of 46.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon S90 |
46 |
20.2 bits |
11.0 Evs |
185 ISO |
Olympus XZ-2 iHS |
49 |
20.4 bits |
11.3 Evs |
216 ISO |