Vortex Viper 8.5x50 Binocular Blowout We are offering a crazy low price on these binoculars, while our supply lasts. This is the 2010 Vortex Viper 8.5x50 Binocular. It was selling for $589.99 and now we are offering it at approx. half price, @ only $299.99. You can tell the difference between true quality, high performance and hype. You also know you could have paid more, but didn't. One look at the Viper binocular will convince you that no other binocular in this class can deliver low light performance with such bright, crisp images and exceptional color transmission at extreme distances. With 8.5x magnification and 50mm objective lenses, the 8.5x50 Viper is intended to delivering stunning details in low light situations. Optical Features XD Lens ElementsExtra-low dispersion (XD) glass increases resolution and color fidelity, resulting in crisp, sharp images.XR Lens CoatingsVortex proprietary XR anti-reflective coatings, fully multi-coated on all air-to-glass lens surfaces, increase light transmission for maximum brightness.Phase CorrectionUsed on roof prism models only—coating enhances resolution and contrast. Construction Features Roof PrismsValued for greater durability and a more compact size.WaterproofOptics are sealed with O-rings to prevent moisture, dust, and debris from getting inside the binocular.FogproofArgon gas purging guarantees superior fogproof and waterproof performance.Rubber ArmorProvides a secure, non-slip grip, and durable external protection. Convenience Features: Twist EyecupsTwist up and down to precise, intermediate settings to maximize custom fit for comfortable viewing with or without eyeglasses.Center Focus WheelAdjusts the focus of both binocular barrels at the same time.Locking Right Eye DiopterAdjusts for differences in a user's eyes. Located on the right eyepiece.Tripod AdaptableCompatible with a tripod adapter, allowing use on a tripod or car window mount. Adapter sold separately. Specs: Magnification 8.5 x Objective Lens Diameter 50 mm Eye Relief 19.4 mm Exit Pupil 5.88 mm Linear Field of View 305 feet/1000 yards Angular Field Of View 5.8 degrees Close Focus 9.8 feet Interpupillary Distance 59-75 mm Height 7 inches Width 5.2 inches Weight 28.7 ounces Product Manual (PDF)Download Please feel free to call Doug or Neil @ 212-753-5128. BTW, add aVortex Binocular Harness Strap to your binocular order for only $10.00, as a special bonus.