Both Canon 400D and Olympus XZ-1 have 10.0 MP resolution sensors but Canon 400D's sensor is APS-C (22.2 x 14.8 mm ) and Olympus XZ-1's sensor is 1/1.63-inch (8.07 x 5.56 mm ).
Since Canon 400D's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Olympus XZ-1.
Below you can see the 400D and XZ-1 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 400D and Olympus XZ-1 Cameras
As seen above, Canon 400D has a 7.3x Larger sensor area than Olympus XZ-1. 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 400D and Olympus XZ-1 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, 400D has scored 62, 28 points higher than XZ-1.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Canon 400D |
62 |
22.1 bits |
11.0 Evs |
664 ISO |
|
Olympus XZ-1 |
34 |
18.8 bits |
10.4 Evs |
117 ISO |