Vortex Optics - Viper R/T 8x28

Viper R/T 8x28 Tactical Binocular

The Viper R/T tactical binocular combines award-winning optics and tactical 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. Law enforcement and hunters can range objects of known dimension with the R/T Ranging reticle, which features four silhouettes to serve as a secondary ranging aid.

INCLUDED

Rainguard
Tethered objective lens covers
Deluxe contoured neck strap
Deluxe padded carry case

VIP Unconditional Lifetime Warranty

Optical Features
XD Lens Elements	Extra-low dispersion (XD) glass increases resolution and color fidelity, resulting in crisp, sharp images.
Dielectric Prism Coatings	Multi-layer coatings provide the clearest, brightest, most color-accurate images possible.
XR Lens Coatings	Vortex proprietary XR anti-reflective coatings, fully multi-coated on all air-to-glass lens surfaces, increase light transmission for maximum brightness.
Phase Correction	Used on roof prism models only—coating enhances resolution and contrast.

Construction Features
Roof Prisms	Valued for greater durability and a more compact size.
Waterproof	Optics are sealed with O-rings to prevent moisture, dust, and debris from getting inside the binocular.
Fogproof	Argon gas purging guarantees superior fogproof and waterproof performance.
Rubber Armor	Provides a secure, non-slip grip, and durable external protection.
ArmorTek	Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt.

Convenience Features
Adjustable Eyecups	Twist up and down for precise, intermediate settings to maximize comfortable viewing with or without eyeglasses.
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.

Magnification	8 x
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
Product Manual (PDF)	Download