High-quality, waterproof, nitrogen-filled Helios sighting scope with single eyepiece focusing for marine, low-light observation and astronomy. The impact-resistant design includes a rugged all-metal body construction. It incorporates BaK-4 prisms and fully broadband multi-coated optics. The high-resolution optical system includes optics and prisms with high transmission coatings, which allow an enormous 92% of the light to pass and enable a flat and distortion-free image. The exotic eyepiece design includes oversized lenses and long eye relief. The rubber eyecups can be folded down for people who wear glasses. The binoculars are equipped with a connection thread for tripods and threads for standard 1.25″ astronomy filters on the eyepieces. The housing is provided with a dark green rubber coating. A padded carrying case is included in the scope of delivery. Scope of delivery: 7×50 spotting scope dust protection caps bag! Power supply and batteries are not included!