Both Panasonic FZ200 and Canon SX50 HS 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 FZ200 and SX50 HS sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic FZ200 and Canon SX50 HS Cameras
Panasonic FZ200 and Canon SX50 HS 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.
DxOMark Sensor Scores
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. It scores camera sensors for color depth (DXO Portrait), dynamic range (DXO Landscape) and low-light sensitivity (DXO Sports), and also gives them an overall score. Panasonic FZ200 and Canon SX50 HS sensors have been tested by DxO and the results show that SX50 HS has a better overall score of 47, 10 points higher compared to FZ200's score of 37.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Panasonic FZ200
37
19.1 bits
10.8 Evs
114 ISO
Canon SX50 HS
47
20.3 bits
11.2 Evs
179 ISO
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 FZ200
or the
Canon SX50 HS ,
including hyperfocal distance.