Casio EX-Z35 has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Exilim Engine 5.0 processor. On the other hand, Samsung MV800 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the EX-Z35 and MV800 sensor size comparison.
Sensor Size and Resolution Comparison image of Casio EX-Z35 and Samsung MV800 Cameras
Casio EX-Z35 and Samsung MV800 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 Casio EX-Z35 has 32% larger pixel area compared to Samsung MV800, 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
Casio EX-Z35
or the
Samsung MV800 ,
including hyperfocal distance.