Featuring an exclusive design tailored for vertical shooting, the Canon ER-iE Eyecup offers a larger alternative to the standard eyecup designed for the Canon EOS R1 mirrorless camera. Its asymmetrical shape effectively shields against stray light, while its 360° rotating capability, with distinct clicks at 90° intervals, accommodates diverse camera handling methods. Crafted from silicone rubber, this eyecup delivers a comfortable cushioning experience around the camera's eyepiece and is suitable for individuals who wear eyeglasses.