Both Canon 77D and Nikon D5600 have APS-C sized 24.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
One other difference between these two cameras that is worth mentioning is that Nikon D5600's sensor doesn't have an anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moiré occurring in certain scenes.
Below you can see the 77D and D5600 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 77D and Nikon D5600 Cameras
As seen above, Nikon D5600 has a 1.1x Larger sensor area than Canon 77D. 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
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. It 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. Canon 77D and Nikon D5600 sensors have been tested by DxO and the results show that D5600 has a better overall score of 84, 6 points higher compared to 77D's score of 78.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Canon 77D |
78 |
23.6 bits |
13.3 Evs |
971 ISO |
|
Nikon D5600 |
84 |
24.1 bits |
14.0 Evs |
1306 ISO |