Excellent Condition, only used with UV protective filter. All-new optical design with improvements in peripheral brightness. High-performance standard zoom lens with constant f/4L aperture and a broad angle of view covering wide-angle to mid-telephoto. Air Sphere Coating (ASC) helps to significantly reduce flare and ghosting. Image Stabilizer performance at up to 4 stops* of shake correction helps capture sharp images. Circular aperture (10 blades) helps deliver beautiful, soft backgrounds. Fluorine coating on front and rear lens surfaces helps reduce smears and fingerprints.