Olympus E-420 has a
10.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features TruePic III processor. On the other hand, Olympus E-620 has a
12.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor and features TruePic III+ processor.
Below you can see the E-420 and E-620 sensor size comparison.
Olympus E-420 and Olympus E-620 have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture. On the other hand, since Olympus E-420 has 22% larger pixel area compared to Olympus E-620, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
DxOMark Sensor Scores
Both Olympus E-420 and Olympus E-620 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, E-420 has scored 56, 1 points higher than E-620.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Olympus E-420 |
56 |
21.5 bits |
10.4 Evs |
527 ISO |
Olympus E-620 |
55 |
21.3 bits |
10.3 Evs |
536 ISO |