Canon 400D has a 10.0MP APS-C (22.2 x 14.8 mm ) sized CMOS sensor . On the other hand, Canon 350D has a 8.0MP APS-C (22.2 x 14.8 mm ) sized CMOS sensor .
Below you can see the 400D and 350D sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 400D and Canon 350D Cameras
Canon 400D and Canon 350D 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 350D has 26% larger pixel area (41.28µm2 vs 32.60µm2) compared to Canon 400D, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
DxOMark Sensor Scores
Both Canon 400D and Canon 350D 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, 2 points higher than 350D.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Canon 400D |
62 |
22.1 bits |
11.0 Evs |
664 ISO |
|
Canon 350D |
60 |
21.8 bits |
10.8 Evs |
637 ISO |