Nikon D300 has a
12.0MP APS-C (23.6 x 15.8 mm ) sized CMOS sensor and features Expeed processor. On the other hand, Sony A380 has a
14.0MP APS-C (23.6 x 15.8 mm ) sized CCD sensor and features Bionz processor.
Below you can see the D300 and A380 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon D300 and Sony A380 Cameras
Nikon D300 and Sony A380 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 Nikon D300 has 14% larger pixel area compared to Sony A380, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
DxOMark Sensor Scores
At Camera Decision, we also look at Dxo Mark sensors when available as we think it is a good indicator of image quality.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Nikon D300
67
22.1 bits
12.0 Evs
679 ISO
Sony A380
67
22.6 bits
11.8 Evs
614 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
Nikon D300
or the
Sony A380 ,
including hyperfocal distance.
