Nikon AF-S DX Zoom-Nikkor 12-24mm f/4G IF-ED Lens

12-24mm Focal Length/ 2.0x Zoom Ratio/ Silent Wave Motor/ ED (Extra-Low Dispersion) Glass/ 11 Lens Elements/ 7 Lens Groups/ 7 Diaphragm Blades/ Super Integrated Coating/ Internal Focusing/ 77mm Filter Size/ Black Finish