MaximalPower Eyecup Ef For CANON EOS Rebel XT, XTi, XS, XSi, T1i, T2, T2i, T3, T3i, T4i, T5i, SL1 This 18mm Eyecup for Canon replaces your lost, damaged or broken eyepiece. Comes with a soft outer edge rubber cushion for more comfort Compatible with CANON Rebel T6s T6i T6 T5i T5 T4i T3i T3 T2i T1i XTi XSi XS), CANON EOS (1300D 1200D 1100D 760D 750D 700D 650D 600D 550D 500D 450D 400D 350D 300D Provides protection for the camera eyepiece and keep the camera viewfinder away from dust. Eyecup design for Canon EOS and Canon Digital Rebel to prevent light entry due to Shutter/bulb shutter long exposure.A great accessory for all photographers.