Casio EX-ZR800 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor and features EXILIM Engine HS 3 processor. On the other hand, FujiFilm JZ300 has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the EX-ZR800 and JZ300 sensor size comparison.
Sensor Size and Resolution Comparison image of Casio EX-ZR800 and FujiFilm JZ300 Cameras
Casio EX-ZR800 and FujiFilm JZ300 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 FujiFilm JZ300 has 32% larger pixel area (2.34µm 2 vs 1.76µm 2 ) compared to Casio EX-ZR800, 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-ZR800
or the
FujiFilm JZ300 ,
including hyperfocal distance.