Combines 10x magnification with 50mm objective lenses for maximum brightness. Features: ED prime glass - Bushnell's highest quality glass delivers amazing color, resolution and contrast, even in low-light conditions Exclusive EXO barrier protection - Bushnell's newest and best protective lens coating molecularly bonds to the glass, repelling water, oil, dust, debris and preventing scratches Dielectric prism coating - applied to the prisms, it ensures vivid color reproduction and allows 92% light transmission for bright images PC-3 phase coating - applied to the prisms, it enhances resolution and contrast Exobarrier protective lens coating IPX7 waterproof Extra low dispersion glass Lead free glass, locking diopter Adapts to tripod Phase correction coating, ultrawide band coating Twist up eyecups