Canon 450D has a
12.0MP APS-C (22.2 x 14.8 mm ) sized CMOS sensor . On the other hand, Sony A230 has a
10.0MP APS-C (23.5 x 15.7 mm ) sized CCD sensor and features Bionz processor.
Below you can see the 450D and A230 sensor size comparison.
As seen above, Sony A230 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
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 Sony A230 sensors have been tested by DxO and the results show that A230 has a better overall score of 63, 2 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 |
Sony A230 |
63 |
22.3 bits |
11.4 Evs |
531 ISO |