Both Canon 750D and Canon T7 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 750D and T7 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 750D and Canon T7 Cameras
Canon 750D and Canon T7 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.
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 750D
71
22.7 bits
12.0 Evs
919 ISO
Canon T7
71
22.6 bits
11.9 Evs
1009 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 750D
or the
Canon T7 ,
including hyperfocal distance.
