A convenient standard zoom lens with high quality optics, a high zoom ratio and good cost performance for use with the Nikon DX Format Digital SLRs. With an ample 18-70mm zoom range that is equivalent to a 27-105mm lens in 35mm format, this lens offers maximum versatility to accommodate tight portraits or expansive landscapes. Optical performance is augmented through the incorporation of 3 ED glass elements and 1 composite aspherical lens that together provide appropriate compensation for aberrations. Through the adoption of an SWM (Silent Wave Motor), the AF-S DX Zoom-NIKKOR 18-70mm f/3.5-4.5G IF-ED enables swift, silent AF (Auto Focus) performance with the AF systems of the Nikon Digital SLR's.