Canon R6 has a
20.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Digic X processor. On the other hand, Sony A9 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 R6 and A9 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon R6 and Sony A9 Cameras
Canon R6 and Sony A9 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 R6 and Sony A9 sensors have been tested by DxO and the results show that A9 has a better overall score of 92, 2 points higher compared to R6's score of 90.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon R6
90
24.2 bits
14.3 Evs
3394 ISO
Sony A9
92
24.9 bits
13.3 Evs
3517 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 R6
or the
Sony A9 ,
including hyperfocal distance.