Pentax K10D has a
10.0MP APS-C (23.5 x 15.7 mm ) sized CCD sensor . On the other hand, Nikon D300S has a
12.0MP APS-C (23.6 x 15.8 mm ) sized CMOS sensor and features Expeed processor.
Below you can see the K10D and D300S sensor size comparison.
Sensor Size and Resolution Comparison image of Pentax K10D and Nikon D300S Cameras
Pentax K10D and Nikon D300S 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. Pentax K10D and Nikon D300S sensors have been tested by DxO and the results show that D300S has a better overall score of 70, 4 points higher compared to K10D's score of 66.
| Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
|
Pentax K10D |
66 |
22.7 bits |
11.6 Evs |
522 ISO |
|
Nikon D300S |
70 |
22.5 bits |
12.2 Evs |
787 ISO |