Nikon D3100 has a 14.0MP APS-C (23.1 x 15.4 mm ) sized CMOS sensor and features Expeed 2 processor. On the other hand, Nikon D3000 has a 10.0MP APS-C (23.6 x 15.8 mm ) sized CCD sensor and features Expeed processor.
Below you can see the D3100 and D3000 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon D3100 and Nikon D3000 Cameras
Nikon D3100 and Nikon D3000 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 D3100 and Nikon D3000 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, D3100 has scored 67, 5 points higher than D3000.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Nikon D3100 |
67 |
22.5 bits |
11.3 Evs |
919 ISO |
|
Nikon D3000 |
62 |
22.3 bits |
11.1 Evs |
563 ISO |