Pentax Q10 has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor . On the other hand, Nikon D5100 has a
16.0MP APS-C (23.6 x 15.7 mm ) sized CMOS sensor and features Expeed 2 processor.
Below you can see the Q10 and D5100 sensor size comparison.
As seen above, Nikon D5100 has a 13.2x Larger sensor area than Pentax Q10. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in 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 Q10 and Nikon D5100 sensors have been tested by DxO and the results show that D5100 has a better overall score of 80, 31 points higher compared to Q10's score of 49.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Pentax Q10 |
49 |
21.1 bits |
10.9 Evs |
183 ISO |
Nikon D5100 |
80 |
23.5 bits |
13.6 Evs |
1183 ISO |