Sony RX10 II has a
20.0MP 1″ (13.2 x 8.8 mm ) sized Stacked BSI-CMOS sensor and features Bionz X processor. On the other hand, Pentax K10D has a
10.0MP APS-C (23.5 x 15.7 mm ) sized CCD sensor .
Sony RX10 II's sensor provides 10MP more than Pentax K10D'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 RX10 II and K10D sensor size comparison.
As seen above, Pentax K10D has a 3.2x Larger sensor area than Sony RX10 II. 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
Both Sony RX10 II and Pentax K10D sensors have been tested by DxoMark. DxoMark 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. Of the two cameras that we are comparing, RX10 II has scored 70, 4 points higher than K10D.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony RX10 II |
70 |
23.0 bits |
12.6 Evs |
531 ISO |
Pentax K10D |
66 |
22.7 bits |
11.6 Evs |
522 ISO |