HoodEYE for CANON 5D, 5DII, 6D, 6DII & T3 HoodEYE links your eye to the camera by comfortably sealing out ambient light. You can easily upgrade your camera eyepiece in just a few seconds. Features: -Slides over eyepiece mounting rails -Rotates to accommodate right or left eyed shooters -Hypoallergenic silicon rubber eyecup