Sony A55 has a
16.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Bionz processor. On the other hand, Sony A450 has a
14.0MP APS-C (23.4 x 15.6 mm ) sized CMOS sensor and features Bionz processor.
Below you can see the A55 and A450 sensor size comparison.
Sony A55 and Sony A450 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 Sony A55 and Sony A450 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, A55 has scored 73, 7 points higher than A450.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony A55 |
73 |
23.0 bits |
12.4 Evs |
816 ISO |
Sony A450 |
66 |
21.8 bits |
11.8 Evs |
769 ISO |