Casio EX-Z800 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, Canon A1300 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the EX-Z800 and A1300 sensor size comparison.
Sensor Size and Resolution Comparison image of Casio EX-Z800 and Canon A1300 Cameras
Casio EX-Z800 and Canon A1300 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-Z800 has 14% larger pixel area compared to Canon A1300, 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-Z800
or the
Canon A1300 ,
including hyperfocal distance.