Sony A300 has a
10.0MP APS-C (23.6 x 15.8 mm ) sized CCD sensor . 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.
Sony A3000's sensor provides 10MP more than Sony A300'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.
Below you can see the A300 and A3000 sensor size comparison.
Sony A300 and Sony A3000 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
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 A300 and Sony A3000 sensors have been tested by DxO and the results show that A3000 has a better overall score of 78, 14 points higher compared to A300's score of 64.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony A300 |
64 |
22.5 bits |
11.4 Evs |
538 ISO |
Sony A3000 |
78 |
23.7 bits |
12.8 Evs |
1068 ISO |