The EC-7 Eyeshade for Select Canon Cameras from jjc is a replacement eyepiece for select Canon cameras that provides a large oval eyecup for more comfortable viewing through the viewfinder. The large shape of the eyecup improves the image quality in the viewfinder by sealing out all extraneous light. It can rotate 360? to accommodate both the left and right eye and horizontal and vertical shooting positions. The eyecup extends from the viewfinder somewhat and works well for photographers who wear eyeglasses because it rests evenly on the eyeglass surface blocking stray light and providing a clearer image. The soft yet durable rubber design is comfortable for those who do not wear eyeglasses and will not scratch or damage the glasses of those who do. It mounts easily and securely to the camera"s viewfinder.Meterial : TPU Rubber with ABSCompatibility:Canon EOS 10D 20D 20Da 30D 40D 50D 5D 5D Mark II 60D 60Da A2 A2E D30 D60 Elan II Elan IIE Rebel 2000 Rebel G Rebel G II Rebel K2 Rebel X Digital Rebel (original version) Digital Rebel XS XSi XT XTi TI T1i T2 T2i T3 T3i T4i