Both Nikon D7000 and Sony A37 have APS-C sized 16.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the D7000 and A37 sensor size comparison.
Nikon D7000 and Sony A37 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 D7000 and Sony A37 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, D7000 has scored 80, 5 points higher than A37.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Nikon D7000 |
80 |
23.5 bits |
13.9 Evs |
1167 ISO |
Sony A37 |
75 |
23.3 bits |
12.9 Evs |
799 ISO |