Casio EX-FS10 has a
9.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor . On the other hand, Panasonic ZS20 has a
14.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CMOS sensor .
Panasonic ZS20's sensor provides 5MP more than Casio EX-FS10's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the EX-FS10 and ZS20 sensor size comparison.
Sensor Size and Resolution Comparison image of Casio EX-FS10 and Panasonic ZS20 Cameras
Casio EX-FS10 and Panasonic ZS20 have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
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-FS10
or the
Panasonic ZS20 ,
including hyperfocal distance.
