Both Sony A230 and Nikon D3000 have APS-C sized 10.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the A230 and D3000 sensor size comparison.
Sony A230 and Nikon D3000 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
Both Sony A230 and Nikon D3000 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, A230 has scored 63, 1 points higher than D3000.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony A230 |
63 |
22.3 bits |
11.4 Evs |
531 ISO |
Nikon D3000 |
62 |
22.3 bits |
11.1 Evs |
563 ISO |