Sony A300 has a
10.0MP APS-C (23.6 x 15.8 mm ) sized CCD 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 A300 and 450D sensor size comparison.
As seen above, Sony A300 has a 1.1x Larger sensor area than Canon 450D. 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 Sony A300 and Canon 450D 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, A300 has scored 64, 3 points higher than 450D.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony A300 |
64 |
22.5 bits |
11.4 Evs |
538 ISO |
Canon 450D |
61 |
21.9 bits |
10.8 Evs |
692 ISO |