Fujifilm XP50 has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor . On the other hand, Canon SD4500 IS has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Digic 4 processor.
Below you can see the XP50 and SD4500 IS sensor size comparison.
Sensor Size and Resolution Comparison image of Fujifilm XP50 and Canon SD4500 IS Cameras
Fujifilm XP50 and Canon SD4500 IS 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 Canon SD4500 IS has 41% larger pixel area (2.81µm 2 vs 1.98µm 2 ) compared to Fujifilm XP50, 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
Fujifilm XP50
or the
Canon SD4500 IS ,
including hyperfocal distance.