Pentax X90 has a
12.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Prime processor. On the other hand, Olympus SZ-15 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the X90 and SZ-15 sensor size comparison.
Sensor Size and Resolution Comparison image of Pentax X90 and Olympus SZ-15 Cameras
Pentax X90 and Olympus SZ-15 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
Pentax X90
or the
Olympus SZ-15 ,
including hyperfocal distance.
