Olympus SZ-16 iHS has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor . On the other hand, Pentax E90 has a
10.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Prime processor.
Olympus SZ-16 iHS's sensor provides 6MP more than Pentax E90's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the SZ-16 iHS and E90 sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus SZ-16 iHS and Pentax E90 Cameras
Olympus SZ-16 iHS and Pentax E90 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 SZ-16 iHS
or the
Pentax E90 ,
including hyperfocal distance.
