Olympus SP-610UZ 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-610UZ and RZ18 sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus SP-610UZ and Pentax RZ18 Cameras
Olympus SP-610UZ 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-610UZ
or the
Pentax RZ18 ,
including hyperfocal distance.
