Nikon 24-70mm f/2.8G ED Auto Focus-S Nikkor Wide Angle Zoom Lens (Certified Refurbished) This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com Includes all original accessories plus a 90-day warranty Fast, wide-angle to medium telephoto AF-S zoom lens optimized for edge-to-edge sharpness on both the Nikon FX (23.9 x 36mm) and DX format image sensors. Enhanced optical formulas, engineered to produce exceptional sharpness, contrast and color, rendering outstanding image integrity, Exclusive Nano Crystal Coat further reduces ghosting and flare for even greater image clarity. Two ED (Extra-low Dispersion) elements and PGM aspherical lenses control chromatic aberrations while enhancing sharpness and contrast, even at the widest aperture settings, Nikon's Silent Wave Motor (SWM) enables ultra high-speed autofocusing with exceptional accuracy and powerful, super-quiet operation.