Camera Eyecup Eyepiece for Canon EF Replacement Viewfinder Protector for Canon EOS 300D 350D 400D 450D 500D 550D 600D 1000D 1100D 700D 100D CANON Rebel XT XTi XS XSi T1i T2 T2i T3 T3i T4i T5i SL1 (GL1253) Microscope Eyeguard Microscope Eyepiece 34mm top size Rubber Eyeguards This eyeguard is foldable