Ricoh WG-1000 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor . On the other hand, Panasonic FX75 has a
14.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Venus Engine HD II processor.
Below you can see the WG-1000 and FX75 sensor size comparison.
Sensor Size and Resolution Comparison image of Ricoh WG-1000 and Panasonic FX75 Cameras
Ricoh WG-1000 and Panasonic FX75 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
Ricoh WG-1000
or the
Panasonic FX75 ,
including hyperfocal distance.