Both Nikon D3S and Nikon D3 have Full frame sized 12.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the D3S and D3 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon D3S and Nikon D3 Cameras
Nikon D3S and Nikon D3 have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture.
DxOMark Sensor Scores
Both Nikon D3S and Nikon D3 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, D3S has scored 82, 1 points higher than D3.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Nikon D3S
82
23.5 bits
12.0 Evs
3253 ISO
Nikon D3
81
23.5 bits
12.2 Evs
2290 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 D3S
or the
Nikon D3 ,
including hyperfocal distance.
