Orion's Scenix 50mm binoculars offer the superior optical and mechanical quality you'd expect in more expensive binoculars but at a price that won't break the bank. Scenix binoculars incorporate porro prisms made from top-quality BAK-4 optical glass. Moreover, every air-to-glass optical surface is antireflection coated, and the 50mm objective lenses are multi-layer coated for maximum light transmission. In Astronomy magazine's April 2005 review of 10x50 binoculars under $100, the Scenix 10x50 was rated #1! The housings are constructed of sturdy metal, not plastic, and armored with protective rubber for a secure grip. Both models include a vinyl carrying case, lens caps, deluxe wide neck strap, and a threaded socket for an optional tripod L-adapter. Put Scenix to use for stargazing, birdwatching, or any outdoor viewing activity. Two-year limited warranty.