Remarkable performance has made the Nikon 18 x 70 Astroluxe XL Binocular as the most preferred choice among astronomy professionals. It offers a wide 64.3 degree apparent angular field of view that helps in viewing larger areas. These binoculars provide a comfortable viewing experience with the Nikon's high-eyepoint design. All the lenses of this binocular are multilayer coated that provides brighter images, helping you to conveniently see any target. This binocular is fog-proof as the optical barrel filled with nitrogen to prevent internal fogging. The o-ring seal prevents moisture from entering in and makes it waterproof. The long eye-relief design provides relaxed viewing even for people wearing sunglasses or spectacles.