Both Nikon D3200 and Canon T7 have 24.0 MP resolution sensors but Nikon D3200's sensor is APS-C (23.2 x 15.4 mm ) and Canon T7's sensor is APS-C (22.3 x 14.9 mm ).
Since Nikon D3200's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Canon T7.
Below you can see the D3200 and T7 sensor size comparison.
Nikon D3200 and Canon T7 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 Nikon D3200 and Canon T7 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, D3200 has scored 81, 10 points higher than T7.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Nikon D3200 |
81 |
24.1 bits |
13.2 Evs |
1131 ISO |
Canon T7 |
71 |
22.6 bits |
11.9 Evs |
1009 ISO |