Both Samsung ST600 and Fujifilm S4200 have 1/2.3-inch sized 14.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the ST600 and S4200 sensor size comparison.
Sensor Size and Resolution Comparison image of Samsung ST600 and Fujifilm S4200 Cameras
Samsung ST600 and Fujifilm S4200 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
Samsung ST600
or the
Fujifilm S4200 ,
including hyperfocal distance.
