Panasonic FZ70 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor and features Venus Engine processor. On the other hand, Sony HX400V has a
20.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Bionz X processor.
Below you can see the FZ70 and HX400V sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic FZ70 and Sony HX400V Cameras
Panasonic FZ70 and Sony HX400V 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 FZ70
or the
Sony HX400V ,
including hyperfocal distance.