Product DescriptionColeman Edition Binoculars by Olympus. Compact and lightweight to easily accompany you on any outdoor journey. Waterproof and nitrogen-filled to perform while braving the elements. High-index BaK-4 prisms and fully multi-coated optics for outstanding image quality even in severe conditions. The Magellan 8x25 WP I binoculars werent made merely to face a challenge;they were designed to conquer it.From the ManufacturerColeman Edition Binoculars by Olympus. Compact and lightweight to easily accompany you on any outdoor journey. Waterproof and nitrogen-filled to perform while braving the elements. High-index BaK-4 prisms and fully multi-coated optics for outstanding image quality even in severe conditions. The Magellan 8x25 WP I binoculars werent made merely to face a challenge, they were designed to conquer it. áFeatures ? Category: Magellan ? Magnification 8x ? Objective Lens Diameter: 25 mm ? Exit Pupil Diameter: 3.1 mm ? Eye Relief: 18 mm ? Prism Type: Roof ? Prism Glass: BK-4 ? Fully Multi-Coated UV Protection ? Field of View Angular: 5.5 ? Field of View at 1000 yds: 288 ft ? Close Focus Distance: 9.9 ft ? Relative Brightness: 9.8 ? Weight: 12.0 oz. ? Product Dimensions: 4.4 x 4.5 x 1.7 (inches)