Canon 30D has a
8.0MP APS-C (22.5 x 15 mm ) sized CMOS sensor . On the other hand, Canon 450D has a
12.0MP APS-C (22.2 x 14.8 mm ) sized CMOS sensor .
Below you can see the 30D and 450D sensor size comparison.
Canon 30D and Canon 450D have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
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 30D and Canon 450D sensors have been tested by DxO and the results show that 450D has a better overall score of 61, 2 points higher compared to 30D's score of 59.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon 30D |
59 |
21.5 bits |
10.8 Evs |
736 ISO |
Canon 450D |
61 |
21.9 bits |
10.8 Evs |
692 ISO |