Nikon AF-S Nikkor 24-70mm f/2.8G ED LensThe AF-S Nikkor 24-70mm f/2.8G ED Lens from Nikon is a fast aperture standard zoom lens designed for photojournalism and general photography with wide angle to portrait length perspectives. Optimized for edge to edge sharpness on both the Nikon FX (full-frame) and DX-format image sensors it provides the 35mm focal length equivalence of 36-105mm on DX-format cameras. The f/2.8 maximum aperture is effective in low light and creates a shallow depth of field with pleasing out of focus highlights enhanced by a rounded 9 blade diaphragm. Balanced, Fixed f/2.8 Wide Angle To Medium Telephoto Zoom LensPraised for its reliability and overall image quality, this is a long time favourite lens of passionate professionals. With a fast fixed aperture of f/2.8 across a 24–70mm zoom range, this lens provides both fine resolution and natural representation. A Nano Crystal Coat helps effectively reduce ghost and flare effects under harsh lighting for greater image clarity. Its Internal Focus (IF) provides fast and quiet auto focusing without changing the length of the lens, so you can retain subject to working distance through the entire focus range. Fast, Versatile and Exceptionalf/2.8 fixed aperture 24–70mm zoom: The AF-S nikkor 24-70mm f/2.8G ED delivers fast, wide angle to medium telephoto zoom capability and is optimized for edge to edge sharpness on both Nikon FX and DX format DSLRs. Its fast, fixed f/2.8 aperture enables exceptional low light performance and consistent exposure across the entire zoom range. Enhanced optical formulas produce exceptional sharpness, contrast and colour, rendering outstanding image and video integrity. A Favourite Among ProfessionalsDurable, reliable and remarkable: For those who demand reliable performance in challenging environments, the AF-S NIKKOR 24–70mm f/2.8G ED delivers. Its rugged construction includes professional-grade dust and moisture resistance. Three Extra low Dispersion (ED) glass elements and Precision Glass Mold (PGM) Aspherical lens elements control chromatic aberrations while enhancing sharpness and contrast, even at the widest aperture settings; and Nikon’s Silent Wave Motor (SWM) enables ultra high-speed auto focusing with pinpoint accuracy and super quiet operation. Silent Wave MotorAF-S nikkor lenses feature Nikon’s Silent Wave Motor, which represents a significant advance in AF lens technology. Nano Crystal CoatAn anti reflective coating developed by Nikon that virtually eliminates internal lens element reflections across a wide range of wavelengths. ED (Extra-Low Dispersion) GlassAn optical glass developed by Nikon that is used with normal optical glass in telephoto lenses to obtain optimum correction of chromatic aberrations. ASAS stands for Aspherical lens elements. This type of lens utilizes non-spherical surfaces on either one or both sides of the glass in order to eliminate certain types of lens aberration. M/ASelect nikkor lenses have a focusing mode which allows switching from automatic to manual focusing with virtually no lag time by simply turning the focusing ring on the lens. IF LensA nikkor lens in which only the internal lens group shifts during focusing. These lenses will be designated with the abbreviation IF on the lens barrel.