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, FujiFilm AV250 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the FX78 and AV250 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic FX78 and FujiFilm AV250 Cameras
Panasonic FX78 and FujiFilm AV250 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
Panasonic FX78
or the
FujiFilm AV250 ,
including hyperfocal distance.