Fits most canon dslrs with standard 18mm eyepieces rotates for left and right eyed shooters extra large eyecup for spectacle wearers compatible with 10d 20d 30d 40d 50d 1d 1d mark ii 1ds markiii rebel sl1 100d rebel t5 1200d rebel t5i 700d rebel t4i 650d compatible with rebel t2i 550d rebel t1i 500d rebel xs 1000d rebel xsi 450d rebel xti 400d rebel xt 350d rebel 300d rebel t6 760d rebel t6i 750d