Ba K-4 prisms & fully coated lenses 10 x magnification Waterproof fog proof & nitrogen purged to ensure years of performance Designed for the space conscious outdoor enthusiast & bird watcher the new compact Barr amp Stroud Sprite 10x 50 monocular is possibly the best value in the market today. Featuring optical performance equal to or better than any competitors product line the Barr amp Stroud Sprite is waterproof & features rugged armoured construction for years of performance. It comes with twist up eyecup so that it can be used with or without glasses with equal comfort. Designed to be used single handed or on a tripod with equal ease. All Sprite spotters feature Ba K-4 prisms & fully coated lenses to provide optical performance that is equal to or better than anything in its class. Polycarbonate construction All Sprite spotting scopes are manufactured from lightweight polycarbonate which reduces overall weight & makes it extremely rugged & durable. Rubber armour covered A rugged rubber armour covering quiets down bumps & protects your Sprite spotting scope from abrasions & damage from regular use. Waterproof Fog proof amp Nitrogen Filled All Sprite Series monoculars are waterproof fog proof & nitrogen purged to ensure many years of performance. Accessories All Sprite monoculars come with case & table top tripod. Specifications Optical System Roof prism Coating Fully multi coated Magnification 10x Objective dia 50mm Field of view 101m 1000m Brightness 25 Dimensions 162 x 80 x 62 mm Weight 400g