Canon 600D has a
18.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features Digic 4 processor. On the other hand, Sony A330 has a
10.0MP APS-C (23.5 x 15.7 mm ) sized CCD sensor and features Bionz processor.
Canon 600D's sensor provides 8MP more than Sony A330's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the 600D and A330 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 600D and Sony A330 Cameras
As seen above, Sony A330 has a 1.1x Larger sensor area than Canon 600D. 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 Canon 600D and Sony A330 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, 600D has scored 65, 1 points higher than A330.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon 600D
65
22.1 bits
11.5 Evs
793 ISO
Sony A330
64
22.4 bits
11.5 Evs
535 ISO
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Canon 600D
or the
Sony A330 ,
including hyperfocal distance.
