Casio EX-S200 has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Exilim Engine 5.0 processor. On the other hand, 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 EX-S200 and EX-Z16 sensor size comparison.
Sensor Size and Resolution Comparison image of Casio EX-S200 and Casio EX-Z16 Cameras
Casio EX-S200 and Casio EX-Z16 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.
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-S200
or the
Casio EX-Z16 ,
including hyperfocal distance.