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 A6000 has a
24.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Bionz X processor.
Below you can see the A3000 and A6000 sensor size comparison.
Sensor Size and Resolution Comparison image of Sony A3000 and Sony A6000 Cameras
Sony A3000 and Sony A6000 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 compared to Sony A6000, it has potential to collect more light on pixel level hence 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 A6000 sensors have been tested by DxO and the results show that A6000 has a better overall score of 82, 4 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 A6000
82
24.1 bits
13.1 Evs
1347 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
Sony A3000
or the
Sony A6000 ,
including hyperfocal distance.
