Panasonic FH10 has a
16.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor . On the other hand, Samsung HZ25W has a
12.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor .
Below you can see the FH10 and HZ25W sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic FH10 and Samsung HZ25W Cameras
Panasonic FH10 and Samsung HZ25W 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 Samsung HZ25W has 32% larger pixel area (2.31µm 2 vs 1.74µm 2 ) compared to Panasonic FH10, 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
Panasonic FH10
or the
Samsung HZ25W ,
including hyperfocal distance.