Both Sony A77 and Canon T6s have APS-C sized 24.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the A77 and T6s sensor size comparison.
Sensor Size and Resolution Comparison image of Sony A77 and Canon T6s Cameras
As seen above, Sony A77 has a 1.1x Larger sensor area than Canon T6s. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
DxOMark Sensor Scores
Both Sony A77 and Canon T6s 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, A77 has scored 78, 8 points higher than T6s.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Sony A77
78
24.0 bits
13.2 Evs
801 ISO
Canon T6s
70
22.6 bits
12.0 Evs
915 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 A77
or the
Canon T6s ,
including hyperfocal distance.
