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 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 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
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Nikon D80
or the
Nikon D70 ,
including hyperfocal distance.
