Canon 300D has a 6.0MP APS-C (22.7 x 15.1 mm ) sized CMOS sensor . On the other hand, Sony A68 has a 24.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Bionz X processor.
Sony A68's sensor provides 18MP more than Canon 300D'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 300D and A68 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon 300D and Sony A68 Cameras
Canon 300D and Sony A68 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. Canon 300D and Sony A68 sensors have been tested by DxO and the results show that A68 has a better overall score of 79, 24 points higher compared to 300D's score of 55.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Canon 300D |
55 |
21.0 bits |
10.8 Evs |
544 ISO |
|
Sony A68 |
79 |
24.1 bits |
13.5 Evs |
701 ISO |