John Williamson , Apr 12, 2012; 02:03 a.m.
The blue the background, you need to use the smallest aperture setting your lens will allow AND try to get the objects in the background farther back from the subject.
The smaller aperture makes the range of things in sharp focus more narrow. Your CoolPix camera has a lens aperture range of f1.8 ( which would make lots of things out of focus behind your subject ) all the way to f5.9 which will allow many things in the shot be in focus as well as the subject. To be able to use that 1.8 and the settings slightly above that, you need to stay in the wide angle range of your lens zoom.