Olympus SP-820UZ has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor . On the other hand, Olympus SP-590 UZ has a
12.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor .
Below you can see the SP-820UZ and SP-590 UZ sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus SP-820UZ and Olympus SP-590 UZ Cameras
Olympus SP-820UZ and Olympus SP-590 UZ 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.
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-820UZ
or the
Olympus SP-590 UZ ,
including hyperfocal distance.
