Janco Super Qulity Large Eyecup replaces Canon Eyecup Ef for Canon EOS 550D, 500D, 450D, 400D, 350D, 300D Digital Rebel XT, XTi, XSi T1i, T2i, EOS Rebel K2, T2, Ti, MSRP USD4.99. This high quality eyecup is 100% compatible with Canon Eyecup Ef Custom esigned to provide cushioning around the camera's eyepiece It is especially useful to eyeglass wearers Block out unwanted light from your viewfinder For Canon EOS 550D, 500D, 450D, 400D, 350D, 300D Digital Rebel XT, XTi, XSi T1i, T2i, EOS Rebel K2, T2, Ti Supply by RAINBOWIMAGING, MSRP USD4.99.