Nikon D80 has a 10.0MP APS-C (23.6 x 15.8 mm ) sized CCD sensor . On the other hand, Nikon D70 has a 6.0MP APS-C (23.7 x 15.5 mm ) sized CCD sensor .
Below you can see the D80 and D70 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon D80 and Nikon D70 Cameras
Nikon D80 and Nikon D70 have almost the same sensor size so none of them has any significant advantage over other in providing control over depth of field when used with same focal length and aperture.
DxOMark Sensor Scores
Both Nikon D80 and Nikon D70 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, D80 has scored 61, 11 points higher than D70.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Nikon D80 |
61 |
22.1 bits |
11.2 Evs |
524 ISO |
Nikon D70 |
50 |
20.4 bits |
10.3 Evs |
529 ISO |