Olympus SZ-15 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . On the other hand, Casio EX-Z280 has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the SZ-15 and EX-Z280 sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus SZ-15 and Casio EX-Z280 Cameras
Olympus SZ-15 and Casio EX-Z280 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-Z280 has 32% larger pixel area (2.34µm 2 vs 1.76µm 2 ) compared to Olympus SZ-15, 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
Olympus SZ-15
or the
Casio EX-Z280 ,
including hyperfocal distance.
