Incorporating Nikon's second-generation Vibration Reduction (VR II) system enables flexible hand-held shooting by stabilizing the image to compensate for the blur caused by camera shake. This provides the equivalence of 2.5 shutter speed stops to help in capturing sharper images in low light or at extended zoom lengths. The Silent Wave Motor and Internal Focusing system provide fast and quiet auto focusing action, and the nine-blade rounded diaphragm makes out-of-focus elements blend smoothly to produce natural-looking, harmonious backgrounds.