Canon 400D has a 10.0MP APS-C (22.2 x 14.8 mm ) sized CMOS sensor . On the other hand, Panasonic GF1 has a 12.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine HD processor.
Below you can see the 400D and GF1 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 400D and Panasonic GF1 Cameras
As seen above, Canon 400D has a 1.5x Larger sensor area than Panasonic GF1. 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 Panasonic GF1 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, 8 points higher than GF1.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon 400D |
62 |
22.1 bits |
11.0 Evs |
664 ISO |
Panasonic GF1 |
54 |
21.2 bits |
10.3 Evs |
513 ISO |