Both Canon A1100 IS and Canon N Facebook ready 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 A1100 IS and N Facebook ready sensor size comparison.
Sensor Size and Resolution Comparison image of Canon A1100 IS and Canon N Facebook ready Cameras
Canon A1100 IS and Canon N Facebook ready 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 N Facebook ready has 33% larger pixel area (3.12µm 2 vs 2.34µm 2 ) compared to Canon A1100 IS, 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
Canon A1100 IS
or the
Canon N Facebook ready ,
including hyperfocal distance.
