The purple color fringing effect is called chromatic aberration and typically occurs when shooting a bright object with a dark background. It can be seen in images at the point where light shifts to dark and results from the way that light passes through the lens. This is not a defect, and is within the normal performance of the camera. The digital still camera lens is designed to compensate for this phenomenon, however, under certain conditions chromatic aberration may be observed. In this case, please consult the operating instructions as it may be reduced by setting the camera to a narrower aperture. Manuals are posted on your model support page.
NOTE: As with most digital cameras, chromatic aberration is more likely to occur when shooting subjects with high contrast or extreme variation in light levels.