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, Olympus E-450 has a
10.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features TruePic III processor.
Below you can see the D3100 and E-450 sensor size comparison.
As seen above, Nikon D3100 has a 1.6x Larger sensor area than Olympus E-450. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
DxOMark Sensor Scores
Both Nikon D3100 and Olympus E-450 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, 11 points higher than E-450.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Nikon D3100 |
67 |
22.5 bits |
11.3 Evs |
919 ISO |
Olympus E-450 |
56 |
21.5 bits |
10.5 Evs |
512 ISO |