The eyecup is made of soft and durable silicone, so it allows for more comfortable viewing through the camera's viewfinder. Meanwhile, it can prevent scratching and damage to eyeglasses. What's more, the dome-shaped eyecup effectively shields light that may enter the viewfinder and cause flare. It also can be mounted to the viewfinder easily and securely.
It replaces original Canon EF eyepeice, compatible with Canon cameras as below:
Canon EOS Rebel T6 T7 T5 T3 T100 4000D SL3 SL2 SL1 T8i T7i T6s T6i T5i T4i T3i T2i T1i XSi XTi XT XS

