Canon 1Ds has a
11.0MP Full frame (35.8 x 23.8 mm ) sized CMOS sensor . On the other hand, Nikon D3S has a
12.0MP Full frame (36 x 23.9 mm ) sized CMOS sensor and features Expeed processor.
Below you can see the 1Ds and D3S sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 1Ds and Nikon D3S Cameras
Canon 1Ds and Nikon D3S 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
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. Canon 1Ds and Nikon D3S sensors have been tested by DxO and the results show that D3S has a better overall score of 82, 19 points higher compared to 1Ds's score of 63.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon 1Ds
63
21.8 bits
11.0 Evs
954 ISO
Nikon D3S
82
23.5 bits
12.0 Evs
3253 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
Canon 1Ds
or the
Nikon D3S ,
including hyperfocal distance.
