Casio EX-FH100 has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor . On the other hand, Ricoh CX2 has a
9.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor and features Smooth Imaging Engine IV processor.
Below you can see the EX-FH100 and CX2 sensor size comparison.
Sensor Size and Resolution Comparison image of Casio EX-FH100 and Ricoh CX2 Cameras
Casio EX-FH100 and Ricoh CX2 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 Ricoh CX2 has 11% larger pixel area (3.13µm 2 vs 2.81µm 2 ) compared to Casio EX-FH100, 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
Casio EX-FH100
or the
Ricoh CX2 ,
including hyperfocal distance.