Casio EX-FC100 has a
9.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor . On the other hand, Fujifilm A150 has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the EX-FC100 and A150 sensor size comparison.
Sensor Size and Resolution Comparison image of Casio EX-FC100 and Fujifilm A150 Cameras
Casio EX-FC100 and Fujifilm A150 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-FC100 has 11% larger pixel area compared to Fujifilm A150, 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-FC100
or the
Fujifilm A150 ,
including hyperfocal distance.