Waterproof construction with fully multi-coated optics for enhanced contrast and resolution. Folding Roof Prism design provides a more compact binocular for ease of use and convenient storage. Product Specifications Magnification x Objective Lens: 8x42mm Prism System: Roof Prism Glass: BaK-4 Exit Pupil: 5 mm Close Focus: 15 ft WaterProofing: IPX7 Locking Diopter: No Adapts To Tripod: Yes Eyecups: Twist-up Permafocus: No PC-3 Phase Coating: No Dielectric Prism Coating: No Ultra Wide Band Coating: No Protective Lens Coating: Fully Multi-Coated EyeRelief: 13 in ED Prime: No Field of View (ft @ 1000 yds): 305 Length: 6 in Weight: 22.7 oz