Brunton Eterna Compact 8x25 Binocular Brunton Product Includes Binocular Great for Camping High-quality compact 8x power binocular for viewing over long distances 25mm objective lenses with BaK-4 prism glass and phase coating 270-foot field of view at 1,000 yards; 18.5mm long eye relief Waterproof and fog-proof alloy frame; comfortable multi-step eye relief system Measures 4.8 x 3.8 x 1.8 inches (W x H x D); weighs 12 ounces; limited lifetime warranty