Pentax W90 has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Prime processor. On the other hand, Kodak WPZ2 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor .
Below you can see the W90 and WPZ2 sensor size comparison.
Sensor Size and Resolution Comparison image of Pentax W90 and Kodak WPZ2 Cameras
Pentax W90 and Kodak WPZ2 have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture. On the other hand, since Pentax W90 has 32% larger pixel area compared to Kodak WPZ2, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
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 W90
or the
Kodak WPZ2 ,
including hyperfocal distance.
