Bushnell's Sentry 18-36x50mm Spotting Scope combines versatility and cost effectiveness. It comes equipped with fully multi-coated lenses to ensure excellent light transmission, clarity, and color rendition. The Sentry also comes standard with a waterproof/fogproof housing, giving the scope a long service life. Features: Designed to be air tight, so moisture stays out even when submerged in water. Black with Straight eyepieceWaterproof Construction - O-ring sealed optics stay dry inside, even when totally immersed in water. Fully Multi Coated - Multiple layers of anti-reflective coating on all air-to-glass surfaces deliver bright, high-contrast images. Bushnell Tactical Bushnell Sentry 18-36x50mm Black Spotting Scope w/Case and Tripod 783618