Both Nikon D2X and Nikon D90 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 D2X and D90 sensor size comparison.
Nikon D2X 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. Nikon D2X and Nikon D90 sensors have been tested by DxO and the results show that D90 has a better overall score of 73, 14 points higher compared to D2X's score of 59.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Nikon D2X |
59 |
22.1 bits |
10.9 Evs |
476 ISO |
Nikon D90 |
73 |
22.7 bits |
12.5 Evs |
977 ISO |