Samsung HZ30W has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . On the other hand, Samsung WB35F has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the HZ30W and WB35F sensor size comparison.
Sensor Size and Resolution Comparison image of Samsung HZ30W and Samsung WB35F Cameras
Samsung HZ30W and Samsung WB35F 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. On the other hand, since Samsung HZ30W has 32% larger pixel area compared to Samsung WB35F, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
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 HZ30W
or the
Samsung WB35F ,
including hyperfocal distance.