Panasonic FH10 has a
16.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor . On the other hand, Olympus TG-320 has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features TruePic III+ processor.
Below you can see the FH10 and TG-320 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic FH10 and Olympus TG-320 Cameras
Panasonic FH10 and Olympus TG-320 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 FH10
or the
Olympus TG-320 ,
including hyperfocal distance.