Both Panasonic FX48 and Canon SD940 IS have 1/2.3-inch sized 12.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the FX48 and SD940 IS sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic FX48 and Canon SD940 IS Cameras
Panasonic FX48 and Canon SD940 IS 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 FX48
or the
Canon SD940 IS ,
including hyperfocal distance.
