Pentax K-500 has a
16.0MP APS-C (23.7 x 15.7 mm ) sized CMOS sensor and features PRIME M processor. On the other hand, Panasonic GX8 has a
20.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features Venus Engine processor.
Below you can see the K-500 and GX8 sensor size comparison.
As seen above, Pentax K-500 has a 1.7x Larger sensor area than Panasonic GX8. 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-500 and Panasonic GX8 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-500 has scored 79, 4 points higher than GX8.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Pentax K-500 |
79 |
23.7 bits |
13.1 Evs |
1087 ISO |
Panasonic GX8 |
75 |
23.5 bits |
12.6 Evs |
806 ISO |