88% LIGHT TRANSMISSION - Schmidt-Pechan ED glass with a hydrophobic multi-coating provides optical clarity and precision in all situations. COMFORTABLE & FAST FOCUSING - The large and easy-to-grip focus wheel is quick to use on the ZEISS Terra ED binoculars; Your index finger naturally lands on the focusing wheel; always ready when something exciting suddenly happens in front of you. COMPACT, LIGHT & ROBUST - With its waterproof, fiberglass reinforced casing; the ZEISS Terra ED satisfies the high standards of nature lovers; Easy to fit into any bag and nearly indestructible; the ZEISS Terra ED is the perfect companion. ZEISS ANTI-REFLECTIVE COATING - Guaranteed brilliant; high-contrast images; particularly in adverse light conditions and twilight. A CLEAR VIEW IN ANY WEATHER - ZEISS developed a Hydrophobic Multi-layer Anti Reflective Coating for binoculars and scopes that enables a clear and unhindered view in all weather conditions.