Dk-19 Round Eyecup For Nikon Camera (Black) Produced by YSK This round eyecup is specially designed for Nikon D4, D3, D3X, D3S, D2 series and D800, D700 and F6 cameras. It offers a more comfortable view, especially for eyeglass users and reduces stray light entering the viewfinder. Has a wide range of applications including Nikon D4, D3, D3X, D3S, D2 series and D800, D700 and F6 cameras Offers a more comfortable view, especially for eyeglass users and reduces stray light entering the viewfinder Miniature design and convenient to use