The Aluminum body provides ruggedness and thermal stability. The TS-82™ is thoroughly shock tested and waterproof. Large center focus ring is highly precise, comfortable to use and extremely fast, even while wearing gloves. Vivid, high contrast images are the norm, even at the highest magnifications. The TS-82™ produces crisp, razor-sharp resolution with no distortion from edge to edge. Internal prism design provides maximum light transmission. 82mm objective lens provides exceptional low-light performance. Proprietary Nightforce coatings result in superb contrast and brightness. NightForce also added a hydrophobic coating which immediately sheds water without leaving residue. It also repels fingerprints and smudges, keeping your images crisp and clean.