This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day limited hardware warranty. Three aspherical elements help to reduce spherical aberrations and distortion throughout the zoom range for improved sharpness and accurate rendering. A dust- and moisture-resistant design suits working in inclement weather conditions. Weighing 5.9 ounces, its featherweight stature pairs well with compact full-frame or APS-C bodies. The retractable design maintains an especially compact profile when not in use, measuring just 1.8" long. World's smallest and lightest full-frame E-mount standard zoom lens, delivering high optical performance that achieves the high-resolution depiction of full-frame everywhere in the image.