Sony HX200V has a
18.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features BIONZ processor. On the other hand, Nikon S1200pj has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the HX200V and S1200pj sensor size comparison.
Sensor Size and Resolution Comparison image of Sony HX200V and Nikon S1200pj Cameras
Sony HX200V and Nikon S1200pj 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 Nikon S1200pj has 28% larger pixel area (2.01µm 2 vs 1.56µm 2 ) compared to Sony HX200V, it has larger pixel area to collect light hence potential to 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
Sony HX200V
or the
Nikon S1200pj ,
including hyperfocal distance.