Compact 3.8X zoom covers portrait to wide view (76" at 18mm to 22 50" at 70mm).Optimized DX lens design is compatible with every Nikon D-Series digital SLR cameras.Three Nikon ED glass elements, plus aspheric element for low distortion and minimized chromatic aberration.Exclusive Silent Wave Motor for high-speed auto-focusing with accuracy and super-quiet operation.