Canon ER-i Eye Cup for EOS R1 (Provided)

The Canon ER-i Eye Cup is designed to prevent stray light from entering your viewfinder in bright environments and causing glare. This is particularly useful if the photographer is wearing glasses, as it makes for more comfortable viewing. It can also prevent dust and moisture build up on your viewfinder as well, improving visibility. The Canon ER-i eye cup is compatible with EOS R1.

Lightweight and easy to secure to the camera
Dimensions: 6.75 x 2.75 x 12.4mm