Nikon DK-24 Rubber Eyepiece / Eyecup for Nikon D3100 Nikon D5000 Nikon D3000 Nikon D5100 SLR Cameras Provides cushioning around cameras eyepiece Fits on the viewfinder and easily removable Greatly reduces unwanted light Soft rubber to ensure a comfortable fit Compatible with: Nikon D5000/ D5100/ D3000/ D3100 cqmera etc