Nikon D70 has a 6.0MP APS-C (23.7 x 15.5 mm ) sized CCD sensor . On the other hand, Nikon D80 has a 10.0MP APS-C (23.6 x 15.8 mm ) sized CCD sensor .
Below you can see the D70 and D80 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon D70 and Nikon D80 Cameras
Nikon D70 and Nikon D80 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
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. It 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. Nikon D70 and Nikon D80 sensors have been tested by DxO and the results show that D80 has a better overall score of 61, 11 points higher compared to D70's score of 50.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Nikon D70 |
50 |
20.4 bits |
10.3 Evs |
529 ISO |
Nikon D80 |
61 |
22.1 bits |
11.2 Evs |
524 ISO |