Both Sony A7c and Canon R8 have Full frame sized 24.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the A7c and R8 sensor size comparison.
Sensor Size and Resolution Comparison image of Sony A7c and Canon R8 Cameras
Sony A7c and Canon R8 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
Both Sony A7c and Canon R8 sensors have been tested by DxoMark. DxoMark 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. Of the two cameras that we are comparing, A7c has scored 95, 2 points higher than R8.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Sony A7c
95
25.0 bits
14.7 Evs
3407 ISO
Canon R8
93
24.5 bits
14.5 Evs
3295 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
Sony A7c
or the
Canon R8 ,
including hyperfocal distance.
