The Barska Naturescape ED Waterproof Straight Spotting Scope by Barska is provisioned with premium optical quality. The ED, Extra Low Dispersion glass furnishes exceptional clarity, contrast, and resolution by minimizing chromatic aberration and commonly found visual distortions. Phase coating adds to the resolution by phase shifting or correcting the prism's reflected light. This results in an optimized optical path for the size and aperture of the scope. Fully multi-coated optics and BAK4 Porro prisms deliver clear, crisp viewing. It is waterproof and fog proof for all weather conditions and comes with a tabletop tripod. This is an enhanced optical scope with a superior light transmission that still retains the rugged dependability necessary for quick mobility. FeaturesPhase Coated PrismsLow Dispersion GlassBak-4 Porro PrismsHard Case, Table Top Tripod, and Lens Cover Included