Canon T6 has a
18.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features Digic 4+ processor. On the other hand, Nikon D3400 has a
24.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Expeed 4 processor.
Nikon D3400's sensor provides 6MP more than Canon T6'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.
One other difference between these two cameras that is worth mentioning is that Nikon D3400'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 T6 and D3400 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon T6 and Nikon D3400 Cameras
As seen above, Nikon D3400 has a 1.1x Larger sensor area than Canon T6. 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 T6 and Nikon D3400 sensors have been tested by DxO and the results show that D3400 has a better overall score of 86, 20 points higher compared to T6's score of 66.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon T6
66
22.0 bits
11.7 Evs
781 ISO
Nikon D3400
86
24.8 bits
13.9 Evs
1192 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 T6
or the
Nikon D3400 ,
including hyperfocal distance.
