The Vortex Viper R/T 8x28 Tactical Binoculars mix together award-winning optics and required military features to create a tough, durable roof prism binocular-reliable in the worst conditions.
XD (extra-low dispersion glass) objective lenses further enhance resolution and deliver the true-to-life color accuracy so essential for identifying targets. Soldiers and hunters can range objects of known dimension with the R/T Ranging reticle, which features four human silhouettes to serve as a secondary ranging aid.
Vortex Viper 8x28 Binoculars - R/T Tactical Binoculars - R/T Tactical Features
Rainguard, soft and waterproof
Tethered objective lens covers
Deluxe contoured neck strap
Deluxe padded carry case
Vortex Viper 8x28 Binoculars Optical Features
XR Lens Coatings Vortex XR proprietary anti-reflection lens coatings increase light transmission with multiple coatings on all air-to-glass surfaces.
XD Lens Elements Extra-low dispersion (XD) glass enhances resolution, color, and contrast.
Fully Multi-Coated Lenses Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
Phase Correction Used on roof prism models only?coating enhances resolution and contrast.
Roof Prisms Valued for greater durability and a more compact size.
Rubber Armor Provides a secure, non-slip grip, and durable external protection.
Adjustable Eyecups Fold up and down for comfortable viewing with or without eyeglasses. Flared to eliminate stray light and rotatable for a custom fit.
Center Focus Wheel Adjusts the focus of both binocular barrels at the same time.
Right Eye Diopter Adjusts for differences in a user's eyes. Located on the right eyepiece.
Waterproof Optics are sealed with O-rings to prevent moisture, dust, and debris from getting inside the binocular.
Fogproof Barrels are filled with argon gas to inhibit internal fogging.
ArmorTek Lens Armor Ultra-hard, scratch-resistant coating repels oils and corrosive salts on outer glass surfaces.
Vortex Viper 8x28 Binoculars Specifications
Objective Lens Diameter: 28 mm
Eye Relief: 20 mm
Exit Pupil: 3.5 mm
Linear Field of View: 319 feet/1000 yards
Angular Field Of View: 6.1 degrees
Close Focus: 7.5 feet
Interpupillary Distance: 56-73 mm
Height: 4.7 inches
Width: 4.5 inches
Weight: 11.8 ounces