SIGMA LENS 28-135mm f3.8-5.6 Aspherical IF Macro Nikon Camera Lens Infinitely variable zoom from 28mm to 135mm Aspherical Optics help assure optically sharp, detailed imaging Focuses from infinity to 19.7 inches at all of the focal lengths without close-up accessory, and as close as 9.4 inches (1 - 2 reproduction ratio) at the 135mm zoom position Inner focusing system that is autofocus compatible with camera Includes detachable lens hood to prevent extraneous light from degrading image quality