Panasonic ZS80 has a
20.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Venus Engine processor. On the other hand, Sony HX20V has a
18.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features BIONZ processor.
Below you can see the ZS80 and HX20V sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic ZS80 and Sony HX20V Cameras
Panasonic ZS80 and Sony HX20V 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.
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 ZS80
or the
Sony HX20V ,
including hyperfocal distance.