Both Sony A290 and Sony A450 have APS-C sized 14.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the A290 and A450 sensor size comparison.
Sony A290 and Sony A450 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
At Camera Decision, we also look at Dxo Mark sensors when available as we think it is a good indicator of image quality.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony A290 |
66 |
22.6 bits |
11.5 Evs |
615 ISO |
Sony A450 |
66 |
21.8 bits |
11.8 Evs |
769 ISO |