Nikon D3300 has a
24.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Expeed 4 processor. On the other hand, Sony A3000 has a
20.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features BIONZ processor.
Another difference between these two cameras is that Nikon D3300'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 D3300 and A3000 sensor size comparison.
Nikon D3300 and Sony A3000 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 Sony A3000 has 21% larger pixel area (18.50µm2 vs 15.28µm2) compared to Nikon D3300, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
DxOMark Sensor Scores
Both Nikon D3300 and Sony A3000 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, D3300 has scored 82, 4 points higher than A3000.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Nikon D3300 |
82 |
24.3 bits |
12.8 Evs |
1385 ISO |
Sony A3000 |
78 |
23.7 bits |
12.8 Evs |
1068 ISO |