Enhance your photography with this camera eyepiece eyecup, a compatible replacement for the EB 18mm viewfinder. Compatible with Canon EOS 80D 70D 60D 77D 50D Mark II 6D 6D Mark II 40D 30D 20D 20Da 10D 60Da A2 A2E D60 This 18mm eyecup for Canon prevents light from entering due to long exposures of the bulb shutter, making it an excellent accessory for any photographer. Compatible with Canon EOS 80D 70D 60D 77D 50D Mark II 6D 6D Mark II 40D 30D 20D 20Da 10D 60Da A2 A2E D30 D60. Provides protection for the camera's eyepiece and keeps the camera viewfinder free from dust. The plastic body is padded with soft rubber for comfort and protection of your eyes. Package includes 2 pieces of rubber eyecups for Canon.