Canon T7 has a
24.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features Digic 4+ processor. On the other hand, Canon 500D has a
15.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features Digic 4 processor.
Canon T7's sensor provides 9MP more than Canon 500D's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the T7 and 500D sensor size comparison.
Canon T7 and Canon 500D 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. On the other hand, since Canon 500D has 59% larger pixel area (22.08µm2 vs 13.84µm2) compared to Canon T7, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
DxOMark Sensor Scores
Both Canon T7 and Canon 500D 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, T7 has scored 71, 8 points higher than 500D.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon T7 |
71 |
22.6 bits |
11.9 Evs |
1009 ISO |
Canon 500D |
63 |
21.7 bits |
11.5 Evs |
663 ISO |