Built to enhance the legendary legacy of previous models, the Mark 4HD features a slimmer main tube packed with professional-grade innovations. Suitable for dedicated enthusiasts and expert Marksmen, it provides exceptional clarity and a lightweight design that excels both at the range and in the field. The series offers five magnification options to tackle any shooting distance with accuracy. Its three-turn elevation dial and secure ZeroLock windage adjustment deliver dependable performance, even under harsh conditions. Waterproof, fog-proof and protected by Leupold's lifetime warranty, the Mark 4HD is built to perform. The 4:1 zoom ratio offers an ideal balance of weight and versatility, providing magnification options of 1-4.5, 2.5-10, 4.5-18, 6-24, and 8-32 The 25 yd side focus feature enables parallax adjustment from 25 yd to infinity, ensuring a sharp, stable reticle across nearly all distances Leupold's professional-grade optical system ensures superior light transmission, exceptional glare reduction, and the high-resolution and clarity required by professionals Motion Sensor Technology (MST) enhances battery longevity by deactivating illuminated reticles after 5 min of inactivity and reactivating them instantly upon detecting movement The integrated, low-profile throw lever facilitates rapid and effortless magnification adjustments Leupold's advanced sealing and gas technologies ensure optics remain moisture-free and clear, enduring extreme temperatures, elevation changes, and shocks The Electronic reticle flashes when the scope is not level, enhancing long-range shot accuracy and simplifying the mounting process Leupold's Custom Dial System (CDS) allows precise turret customization to match specific ballistics and environmental conditions, range the target, adjust the dial, and aim accurately Equipped with an illuminated reticle, this scope provides a visible aiming point, enhancing accuracy in low-light conditions The micro-adjustable illumination brightness settings are compatible with modern night vision devices and can be precisely calibrated to match your equipment's sensitivity