The Canon MG-Eb Eyepiece Magnifier is a replacement eyepiece for select Canon DSLR cameras. This eyepiece magnifies the image within the viewfinder by approximately 1.2x. The increased magnification aids in confirming subject focus and composition. It is compatible with the Canon EOS 70D, 60D, 50D, 40D, 30D, 20D, 10D, D60, and D30 DSLR Cameras.