Panasonic ZS50 has a
12.0MP (6.17 x 4.55 mm ) sized CMOS sensor . On the other hand, Nikon P1100 has a
16.0MP (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Nikon Expeed processor.
Below you can see the ZS50 and P1100 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic ZS50 and Nikon P1100 Cameras
Panasonic ZS50 and Nikon P1100 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 Panasonic ZS50 has 32% larger pixel area compared to Nikon P1100, 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
Panasonic ZS50
or the
Nikon P1100 ,
including hyperfocal distance.