Sony A450 has a
14.0MP APS-C (23.4 x 15.6 mm ) sized CMOS sensor and features Bionz processor. On the other hand, Nikon D90 has a
12.0MP APS-C (23.6 x 15.8 mm ) sized CMOS sensor .
Below you can see the A450 and D90 sensor size comparison.
Sony A450 and Nikon D90 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
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. Sony A450 and Nikon D90 sensors have been tested by DxO and the results show that D90 has a better overall score of 73, 7 points higher compared to A450's score of 66.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony A450 |
66 |
21.8 bits |
11.8 Evs |
769 ISO |
Nikon D90 |
73 |
22.7 bits |
12.5 Evs |
977 ISO |