Panasonic FX78 has a
12.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Venus Engine FHD processor. On the other hand, Panasonic SZ3 has a
16.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor .
Below you can see the FX78 and SZ3 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic FX78 and Panasonic SZ3 Cameras
Panasonic FX78 and Panasonic SZ3 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 Panasonic FX78 has 32% larger pixel area compared to Panasonic SZ3, 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
Panasonic FX78
or the
Panasonic SZ3 ,
including hyperfocal distance.
