Kodak WPZ2 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor . On the other hand, Pentax W90 has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Prime processor.
Below you can see the WPZ2 and W90 sensor size comparison.
Sensor Size and Resolution Comparison image of Kodak WPZ2 and Pentax W90 Cameras
Kodak WPZ2 and Pentax W90 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 (2.34µm 2 vs 1.76µm 2 ) compared to Kodak WPZ2, it has larger pixel area to collect light hence potential to 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
Kodak WPZ2
or the
Pentax W90 ,
including hyperfocal distance.
