Sony W610 has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features BIONZ processor. On the other hand, Olympus SP-620 UZ has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features TruePic III+ processor.
Below you can see the W610 and SP-620 UZ sensor size comparison.
Sensor Size and Resolution Comparison image of Sony W610 and Olympus SP-620 UZ Cameras
Sony W610 and Olympus SP-620 UZ 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 Sony W610 has 14% larger pixel area compared to Olympus SP-620 UZ, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Sony W610
or the
Olympus SP-620 UZ ,
including hyperfocal distance.
