Both Nikon D90 and Nikon D2Xs have APS-C sized 12.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the D90 and D2Xs sensor size comparison.
Nikon D90 and Nikon D2Xs 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 Nikon D90 and Nikon D2Xs 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, D90 has scored 73, 14 points higher than D2Xs.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Nikon D90 |
73 |
22.7 bits |
12.5 Evs |
977 ISO |
Nikon D2Xs |
59 |
22.2 bits |
10.9 Evs |
489 ISO |