Canon 1D X III has a
20.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Digic X processor. On the other hand, Sony A9 II has a
24.0MP Full frame (35.6 x 23.8 mm ) sized Stacked BSI-CMOS sensor and features BIONZ X processor.
Below you can see the 1D X MIII and A9 Mark II sensor size comparison.
Canon 1D X III and Sony A9 II 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 1D X III and Sony A9 II sensors have been tested by DxO and the results show that A9 Mark II has a better overall score of 93, 2 points higher compared to 1D X MIII's score of 91.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon 1D X III |
91 |
24.2 bits |
14.5 Evs |
3248 ISO |
Sony A9 II |
93 |
25.0 bits |
14.0 Evs |
3434 ISO |