【Compatible With】Ideal viewfinder eyecup eyepiece for Canon EOS R3 Mirrorless Camera, replaces Canon ER-h ER-hE eyecup 【Update Version】It is an upgrade from the original eyepiece and is more suitable for users wearing glasses to use the Canon R3's Eye Control Autofocus Function 【No Blocking The LCD Screen】Please don't worry that this eyeshade will block the LCD camera screen. This viewfinder will not affect the use and flipping of the Canon EOS R3 camera screen. 【High Quality】Soft silicone material for eye comfort, ease your eye hitting on viewfinder incautiously. Blocks light and helps you concentrate on taking photo 【Nice R3 Accessories】When you are outdoors or shooting sports events, this eyecup can effectively protect the viewfinder from impact and scratch. During shooting, the Eyecup can not only keep your viewfinder safe from impact and scratches but also protect the viewfinder from dirt, moisture, dust, and unwanted light, thus providing more image detail. In addition, it allows more comfortable viewing when camera is held to eye, especially when wearing glasses. And it also protects your glasses from scratches.