Pentax K-x has a
12.0MP APS-C (23.6 x 15.8 mm ) sized CMOS sensor and features Prime processor. On the other hand, Panasonic GX7 has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine processor.
Below you can see the K-x and GX7 sensor size comparison.
As seen above, Pentax K-x has a 1.7x Larger sensor area than Panasonic GX7. 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 Pentax K-x and Panasonic GX7 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, K-x has scored 72, 2 points higher than GX7.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Pentax K-x |
72 |
22.8 bits |
12.5 Evs |
811 ISO |
Panasonic GX7 |
70 |
22.6 bits |
12.2 Evs |
718 ISO |