Olympus SP-800 UZ has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features TruePic III processor. On the other hand, Nikon S6200 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Expeed C2 processor.
Below you can see the SP-800 UZ and S6200 sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus SP-800 UZ and Nikon S6200 Cameras
Olympus SP-800 UZ and Nikon S6200 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 SP-800 UZ has 15% larger pixel area compared to Nikon S6200, 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
Olympus SP-800 UZ
or the
Nikon S6200 ,
including hyperfocal distance.