Canon 1Ds MIII has a
21.0MP Full frame (36 x 24 mm ) sized CMOS sensor . On the other hand, Nikon D3X has a
25.0MP Full frame (35.9 x 24 mm ) sized CMOS sensor and features Expeed processor.
Below you can see the 1Ds MIII and D3X sensor size comparison.
Canon 1Ds MIII and Nikon D3X 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 MIII and Nikon D3X sensors have been tested by DxO and the results show that D3X has a better overall score of 88, 8 points higher compared to 1Ds MIII's score of 80.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon 1Ds MIII |
80 |
24.0 bits |
12.0 Evs |
1663 ISO |
Nikon D3X |
88 |
24.7 bits |
13.7 Evs |
1992 ISO |