As a part of the award-winning Swarovski Z8i product line, this rifle scope utilizes a slim 30mm main tube for an impressive 13.3x magnification, a FLEXCHANGE switchable 4A-IF Reticle, the first reticle that can easily switch from dot mode to dot-and-circle mode, allowing the hunter to focus on what matters most, and SWAROLIGHT illumination with compact illumination controls and auto-switch-off battery conservation. With waterproof and fog proof technologies, an illuminated 4A-IF Reticle, and a SWAROCLEAN coating to ensure that water droplets, dirt, and bug spray can be washed away with ease, you can expect a bright and crisp image no matter when you hunt. For even more customization, Swarovski offers an optional BTF (Ballistic Turret Flex) which works exclusively with Swarovski Z8i Rifle Scopes and can be used on the elevation turret for 3 methods of elevation or the windage turret for easy adjustment.