Fotodiox Pro. Filter Adapter Kit (145mm) with Circular Polarizing Filter (CPL) Kit for AF-S NIKKOR 14-24mm f/2.8G ED Nikon Lens. (Filter Adapter + Lens Cap + CPL Filter) Premium Grade Anodized Aluminum Hood Premium Grade Double Threaded CPL Fliter Made of Optical Glass Integrated Filter Adapter, Tight Fit like Part of the Lens. Beautifully Crafed Lens Cap (Included) Other Available Filter includes MC UV, ND4, ND8 Filters