Nikon 8248 ACULON A211 10x50 Binocular (Black) ACULON A211 10x50 binoculars are designed to be as light as possible along with excellent ergonomics. Turn-and-Slide Rubber Eyecups allow for comfortable viewing during extended periods of use. Made with A spherical Multicoated Eco-Glass Lenses bright and clear images in most lighting conditions. The smooth central focus knob makes these binoculars simple to operate and easy to focus. A durable rubber-armored coating ensures a non-slip grip, even in wet conditions.