Athlon Argos HD 20-60x85mm Spotting Scope - Straight - Athlon designed the Argos family of spotting scopes with good optical quality and ease of use in mind. The Argos spotting scope features Athlon's wind band fully multi-coated lenses and porro prisms with phased coating. They bring great clarity and brightness within the reach of all enthusiasts. The light-weight composite chassis protected by rubber armor is fog proof, waterproof, and filled with nitrogen gas to prevent internal fogging and promote better thermal stability. The product comes with a specially designed soft case allowing you to mount the spotting scope on a tripod and use it with the soft case on it all the time. HD Glass: HD glass gives you better light transmission, and brighter and sharper images. Advanced Fully Multi-Coated: Advanced Fully Multi-Coated lenses provide better light transmission with optimum brightness and true color across the entire spectrum. Waterproof: Regardless of how heavy the rain is coming down or an accidental drop in the water, this sealed and gas-purged optic will remain waterproof. Argon Purged: High grade Argon gas has a low thermal conductivity compared to nitrogen gas, resulting in better fog proof capabilities. Rubber Armor Composite Chassis Fog Proof Porro Prism Rotating Ring Twist Up Eyecup Tripod Adaptable