LAMZIX EF18mm Rubber Eye Cup Eyepiece Eyecup for Canon 550D 300D 350D 400D 60d 600d 500D 450D 1000D D30 D60 SLR Camera Attaches to the viewfinder eyepiece minimizing extraneous light and vision fatigue NOTE: For camera models with large fold out, swiveable LCD screens - using an eyecup may prevent you from opening and closing your LCD screen freely. Please consider this before placing an order. New Rubber Eyecup (CANON 18MM) for Canon Digital SLR Cameras. Comfortable ergonomic rubber design. Easy Installation 100%Brand new and High Quality.