Sigma 24-70mm f/2.8 EX DG Aspherical DF lens for Nikon AF-D mount cameras. This professional-grade zoom lens features a fast constant aperture throughout the zoom range, making it ideal for low-light photography and depth-of-field control. The lens is constructed with aspherical elements to minimize aberrations and includes a dedicated aperture ring, compatible with older Nikon film bodies and modern DSLRs with internal focus motors. The exterior features the classic Sigma EX crinkle finish and includes a matching petal-shaped lens hood. Notable whitening/oxidation is present on the rubber zoom ring, which is common for this era of Sigma lenses, but does not affect mechanical performance. Lens optics appear clear with no major scratches or fungus visible.