The magnesium alloy, armor-coated body, which makes the Epochs lightweight, yet durable. To enhance light transmission efficiency, two key features: AL-HR Reflective Coating for back surfaces of the prism and Flat-light Multicoating on the objective lenses for true color. The Epochs are fogproof and waterproof because theyre nitrogen-filled.FEATURES: *43 mm objective lenses increases light gathering *Flat-light transmission coated objective lenses for truest colors *Comfort grip, Rubber Armor coated *Variable speed focusing - less than one turn from infinity to 3 feet *Locking Multi-Step Long-Eye Relief System, Patent-Pending INCLUDES: *Tripod Adapter *Neck Strap *Removable Optivisors |