Sony A100 has a
10.0MP APS-C (23.6 x 15.8 mm ) sized CCD sensor . On the other hand, Nikon P7800 has a
12.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized BSI-CMOS sensor .
Below you can see the A100 and P7800 sensor size comparison.
As seen above, Sony A100 has a 9.0x Larger sensor area than Nikon P7800. 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 Sony A100 and Nikon P7800 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, A100 has scored 61, 7 points higher than P7800.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony A100 |
61 |
22.0 bits |
11.2 Evs |
476 ISO |
Nikon P7800 |
54 |
21.2 bits |
11.7 Evs |
200 ISO |