Canon 77D has a
24.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features DIGIC 7 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 77D and A58 sensor size comparison.
Canon 77D 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 Canon 77D 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, 77D has scored 78, 4 points higher than A58.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon 77D |
78 |
23.6 bits |
13.3 Evs |
971 ISO |
Sony A58 |
74 |
23.3 bits |
12.5 Evs |
753 ISO |