The S.1A and S.1S are our cornerstone spotting scopes. Built to cover ground with your eyes in a fraction of the time and effort it would take you on foot, the S.1 is designed to maximize detail in variable lighting conditions all while providing a crystal clear image at every magnification. The S.1A is our recommended optic for hunters, birders, and wildlife viewers who demand premium performance out of their optics.  As with the entire S Series line-up, the S.1A also features fluorite glass - the best glass available for larger objective lenses which yields tack-sharp edge-to-edge clarity, superior low light performance, and bright, crisp images with no aberration or distortion, even at maximum magnification.The Maven S Series represents our elite line of optics, designed to fit your specific needs, delivered for a fraction of the cost to comparable spotting scopes and stacks up with the most celebrated and expensive scopes in the world. Whether you choose a stock color unit or configure your own custom-built optic, our modern sportsman-inspired designs are paired with the best available materials and state of the art technology to create an uncompromising optic.Includes lens caps and double-layered microfiber storage bag. HIGHLIGHTS-Premium Model-Size: 14.9-Weight: 64.5 oz.-Fluorite Objective System-Fully Multi-Coated Lenses -Phase Correction Coating  -Exceptionally Clear, Bright, High Contrast Image-Excellent Color Fidelity-Waterproof and Fog Proof-Lifetime Warranty-Direct to Consumer / No Retail Markup Spotting Scope Comparison Chart (PDF)Spotting Scope Manual (PDF)