Both Canon 1200D and Canon 4000D have 18.0 MP resolution sensors but Canon 1200D's sensor is APS-C (22.3 x 14.9 mm ) and Canon 4000D's sensor is APS-C (22.3 x 14.9 mm ).
Since Canon 4000D'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 1200D.
Below you can see the 1200D and 4000D sensor size comparison.
Canon 1200D and Canon 4000D 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 1200D |
63 |
21.9 bits |
11.3 Evs |
724 ISO |
Canon 4000D |
63 |
21.9 bits |
11.4 Evs |
695 ISO |