Olympus SP-810 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, Pentax RZ18 has a
16.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor .
Below you can see the SP-810 UZ and RZ18 sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus SP-810 UZ and Pentax RZ18 Cameras
Olympus SP-810 UZ and Pentax RZ18 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-810 UZ
or the
Pentax RZ18 ,
including hyperfocal distance.
