NIKON AF-S DX ZOOM-NIKKOR 17-55MM F/2.8G IF-ED
F Mount Lens / DX Format25.5-82.5mm (35mm Equivalent)Aperture Range: f/2.8 to 22Three ED Glass ElementsThree Aspherical ElementsSuper Integrated Lens CoatingSilent Wave Motor AF SystemInternal Focus; Manual Focus OverrideFilter Diameter: 77mmRounded 9-Blade Diaphragm