Descrizione Kowa YF 8x30 Binocular (Black) YF30-8 Kowa YF 8x30 Binocular (Black)Kowa YF 8x30 Binocular (Black) Porro Prisms Fully Multi-Coated Phase Coating Wide-Angle AAoV Twist-Up Eyecups Rubber Armoring Stylish Ergonomic Design Nitrogen-Filled: Waterproof and Fogproo The YF 8x30 Binocular (Black) from Kowa Sporting Optics is a porro prism binocular with a stylish exterior and an optically excellent interior. Smooth and sleek with strategically placed indentations in the rubber armoring, this glass delivers a secure and firm grip. It has a closed hinged bridge with an eye-catching red line at the intersection of the bridge's point-of-contact. Fully multi-coated, highly reflective coated and phase coated, these optics deliver crisp, clear, contrasted images with real color fidelity. With an eye to keeping the weight down, the engineers at BSA have not sacrificed the nitrogen gas filled fogproofing and waterproofing. This is a wide-angle glass with the ability to scan an exceptional field of vision. Rubber armoring provides a secure and comfortable grip, as well as added shock-resistance. Twist-up eyecups customize the viewer's personal preference with or without eye or sunglasses. The YF 8x30 binocular is a nice looking binocular with the optical features that will be appreciated in any venue; hunting, hiking, birding or sporting events. AAoV of 59.9° A Relative Brightness of 14.4 and a Twilight Factor of 15.5 Nitrogen filled waterproof and fogproof ensures all-weather performance Porro prisms offer greater contrast and depth of field for easier distinction between near and distant objects Rubber armoring provides a secure and comfortable grip, as well as added shock-resistance Highly reflective Kowa KR coating minimizes light loss and produces a clear and sharp image The stylish design includes depressions placed in the rubber armor for a more secure and comfortable hold Phase coating ensures that color wave-lengths have the same focus point reducing chromatic aberration and ensuring color fidelity Fully multi-coated optics provide multiple layers on all air to glass surfaces for a brighter, higher-contrast image with less eyestrain