Sony A3000 has a
20.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features BIONZ processor. On the other hand, Sony A580 has a
16.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Bionz processor.
Below you can see the A3000 and A580 sensor size comparison.
Sony A3000 and Sony A580 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 A580 has 23% larger pixel area (22.87µm2 vs 18.50µm2) compared to Sony A3000, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
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. Sony A3000 and Sony A580 sensors have been tested by DxO and the results show that A580 has a better overall score of 80, 2 points higher compared to A3000's score of 78.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony A3000 |
78 |
23.7 bits |
12.8 Evs |
1068 ISO |
Sony A580 |
80 |
23.8 bits |
13.3 Evs |
1121 ISO |