Nikon D7500 has a
21.0MP APS-C (23.5 x 15.7 mm ) sized CMOS sensor and features Expeed 5 processor. On the other hand, Sony A6400 has a
24.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Bionz X processor.
Another difference between these two cameras is that Nikon D7500's sensor lacks 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 D7500 and A6400 sensor size comparison.
Nikon D7500 and Sony A6400 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 D7500 and Sony A6400 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, D7500 has scored 86, 3 points higher than A6400.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Nikon D7500 |
86 |
24.3 bits |
14.0 Evs |
1483 ISO |
Sony A6400 |
83 |
24.0 bits |
13.6 Evs |
1431 ISO |