Canon G5 X has a
20.0MP 1″ (13.2 x 8.8 mm ) sized BSI-CMOS sensor and features DIGIC 6 processor. On the other hand, Pentax K-30 has a
16.0MP APS-C (23.7 x 15.7 mm ) sized CMOS sensor and features Prime M processor.
Below you can see the G5 X and K-30 sensor size comparison.
As seen above, Pentax K-30 has a 3.2x Larger sensor area than Canon G5 X. 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. Canon G5 X and Pentax K-30 sensors have been tested by DxO and the results show that K-30 has a better overall score of 79, 17 points higher compared to G5 X's score of 62.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon G5 X |
62 |
21.4 bits |
12.3 Evs |
471 ISO |
Pentax K-30 |
79 |
23.7 bits |
13.0 Evs |
1129 ISO |