Panasonic ZS70 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, Panasonic FH27 has a
16.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Venus Engine VI processor.
Below you can see the ZS70 and FH27 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic ZS70 and Panasonic FH27 Cameras
Panasonic ZS70 and Panasonic FH27 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 ZS70
or the
Panasonic FH27 ,
including hyperfocal distance.