Both Pentax K-x and Pentax K-r have APS-C sized 12.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the K-x and K-r sensor size comparison.
Pentax K-x and Pentax K-r 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.
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 |
Pentax K-x |
72 |
22.8 bits |
12.5 Evs |
811 ISO |
Pentax K-r |
72 |
22.9 bits |
12.4 Evs |
755 ISO |