The Hoodman HoodEYE 3.0 is a professional quality rubber eyecup specifically matched to the HoodLoupe 3.0. Ideal if you wear spectacles and also useful in strong sunlight, the HoodEYE 3.0 greatly improves the clarity of view by helping to eliminate side lighting and reflections in bright sunlight. This item is only compatible with the Hoodman HoodLoupe 3.0 (available seperately). No HoodLoupe is included with this item. The Hoodman HoodEYE 3.0 is also reversible for right-eyed and left-eyed photographers.