Meade Wilderness Spotting Scope - 20-60x80mm; Features high index Bak-4 prisms and high-quality, precision ground lenses that are coated with multiple layers of anti-reflection coatings to provide optical performance that is equal to or better than any spotting scope in its class. Waterproof, fog-proof and nitrogen purged. Waterproof, fog proof, fully multi-coated optics, BAK4 prism. Includes nylon carry bag, camera adapter attachment, and lens cleaning cloth. Ready to attach to your -20 tripod.