Canon 450D has a
12.0MP APS-C (22.2 x 14.8 mm ) sized CMOS sensor . On the other hand, Canon 1000D has a
10.0MP APS-C (22.2 x 14.8 mm ) sized CMOS sensor .
Below you can see the 450D and 1000D sensor size comparison.
Canon 450D and Canon 1000D 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 1000D has 20% larger pixel area (32.60µm2 vs 27.00µm2) compared to Canon 450D, it has larger pixel area to collect light hence potential to 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 450D and Canon 1000D sensors have been tested by DxO and the results show that 1000D has a better overall score of 62, 1 points higher compared to 450D's score of 61.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon 450D |
61 |
21.9 bits |
10.8 Evs |
692 ISO |
Canon 1000D |
62 |
22.0 bits |
10.9 Evs |
719 ISO |