Canon 6D has a
20.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Digic 5+ processor. On the other hand, Canon 1D X has a
18.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Dual Digic 5+ processor.
Below you can see the 6D and 1D X sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 6D and Canon 1D X Cameras
Canon 6D and Canon 1D X 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. On the other hand, since Canon 1D X has 11% larger pixel area (48.21µm 2 vs 43.29µm 2 ) compared to Canon 6D, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
DxOMark Sensor Scores
At Camera Decision, we also look at Dxo Mark sensors when available as we think it is a good indicator of image quality.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon 6D
82
23.8 bits
12.1 Evs
2340 ISO
Canon 1D X
82
23.8 bits
11.8 Evs
2786 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 6D
or the
Canon 1D X ,
including hyperfocal distance.
