• High-quality multilayer coating is applied to all lenses and prisms, while dielectric high-reflective multilayer coating is applied to the roof prisms, achieving a bright view of up to 92% or higher light transmittance, and natural color fidelity• Phase-correction prism coating enhances resolution and contrast• Lead-and-arsenic-free glass used in all lenses and prisms• Magnesium alloy body is lightweight and extremely durable• Wider Available Interpupillary Distance Adjustment designed to fit virtually everyone–56mm-74mm• Locking diopter control maintains your personal setting• Long eye relief and turn-and-slide eyecups facilitate optimum eye position• Closer minimum focus distance—just 6.6 feet