Bushnell Trophy XLT 15-45 x 50mm Porro Prism Waterproof/Fogproof Spotting Scope with Compact Tripod, Tan 15-45 x 50mm Objective lens Bak-4 prism glass Fully multi coated Optics Waterproof/fog proof Lead-free glass 15 to 45x magnification and 50mm objective lens spotting scope with twist-up eyepiece Fully multi-coated optics and premium BaK-4 porro prism design for bright, clear, crisp viewing 100 percent waterproof rubber armor construction Includes compact tripod, soft-sided and water-resistant hard case Made with lead free glass for high-quality performance and protecting the environment from unnecessary harm