Pentax K-50 has a
16.0MP APS-C (23.7 x 15.7 mm ) sized CMOS sensor and features PRIME M processor. On the other hand, Sony A58 has a
20.0MP APS-C (23.2 x 15.4 m ) sized CMOS sensor .
Below you can see the K-50 and A58 sensor size comparison.
Pentax K-50 and Sony A58 have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
DxOMark Sensor Scores
Both Pentax K-50 and Sony A58 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-50 has scored 79, 5 points higher than A58.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Pentax K-50 |
79 |
23.7 bits |
13.0 Evs |
1120 ISO |
Sony A58 |
74 |
23.3 bits |
12.5 Evs |
753 ISO |