Fully multi-coated lenses for maximum light transmission and brightness. Phase coated roof prisms also have a super-high reflective coating for high contrast, bright images. Fully waterproof, A high-eye point design provides longer eye relief with or without eyeglasses, Easy to use, twist up eyecups, Impact resistant, easy to grip rubber exterior, Rugged and light, aluminum die-cast body, Impact resistant, easy to grip rubber exterior, Large focus ring for precise, easy adjustments, Environmentally friendly, lead and arsenic free glass (eco-glass)[Specification], Magnifications: 8 times, Objective diameter: 25mm, Field of View: 5.2 Degree, FOV@1000m: 91m, Exit Pupil: 3.1mm, Brightness: 9.6, Eye Relief: 18mm, Close focus distance: 2m, Size: H110xD37xW106mm, Weight: 390g