HD (high density) glass for unmatched color sharpness
Dieletric Multi Layer prism coatings provide clear, bright images
XR fully multi coated lenses increase light transmission
Armor Tek protects exterior lenses from oil and dirt
Argon gas purged for waterproof/fogproof performance
Rubber Armor for non slip grip
The Vortex Viper HD 12x50's are outstanding binoculars for those looking for great glass without breaking the bank. The Vipers have most of the features found in glass much more expensive like HD glass, Dielectric coatings and Argon purging. They are very lightweight and compact at 28oz. For mid-range glass ($400-600) they are some of the best you can find. S&S Archery. Free Shipping. Expert Advice. VIP Customer Service.