Panasonic FP2 has a
14.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Venus Engine IV processor. On the other hand, Casio EX-Z16 has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Exilim Engine 5.0 processor.
Below you can see the FP2 and EX-Z16 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic FP2 and Casio EX-Z16 Cameras
Panasonic FP2 and Casio EX-Z16 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
Panasonic FP2
or the
Casio EX-Z16 ,
including hyperfocal distance.