Athlon designed the Argos family of spotting scopes with good optical quality and ease of use in mind. The Argos spotting scope features their 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. Mfg: Athlon Optics