Leupold VX-5HD Riflescopes series has been launched in 2017. The scopes bring on board improved optical performance by including Leupold's Twilight Max Management System that refines low light performance and High-Definition technologies that boost clarity. These attributes when put together are quite useful for hunters into the crepuscular game. Other features such as the Guard-ion Lens Coating safeguards the lenses and prevents water, dirt, and fingerprints from causing damage. This is supplemented with 2nd Generation Argon/Krypton waterproofing and fog proofing, an extreme fast-focus eyepiece, blackened lens edges, 30 mm scope main tube, 5x zoom ratio, and CDS-ZL2 (Custom Dial System ZeroLock 2) technology (with free custom ballistic dial) in select models. Some models are also available with an illuminated reticle, alumina lens flipback covers and throw lever options. The Leupold VX-H5D scopes are produced in the USA and backed by the brand’s Lifetime Guarantee. Features of Leupold VX-5HD Rifle Scopes: 5x Zoom Ratio 30 mm Scope Main Tube 2nd Generation Argon/Krypton coating for complete waterproofing and fogproofing - This proprietary gas blend provides better waterproofing and gets rid of the effects of thermal shocks. It is better than traditional dry nitrogen coatings and able to lessen the diffusion of gases sealed inside the scope. Extreme Fast-Focus Eyepiece - This helps render generous eye box and an immense field of view, and also allows adjustment through the entire range of the diopter in one complete turn of the eyepiece. Blackened Lens Edges - This eliminates unnecessary glare and also enhances resolution and contrast by reducing diffusion through the lens edges. Guard-ion Lens Coating - This is a water, dirt, and fingerprint shedding lens coating, which is amazingly durable as well as scratch-resistant. High-definition CaF lenses - This calcium-fluoride, non-lead based lenses transmit more light and are lighter than traditional lens materials. They offer exceptionally vivid color, life-like clarity, and higher overall performance. Twilight Max Light Management System - This transmits certain bands of light (such as blue and red) to enhance visual acuity in low light conditions and deliver usable light to the eye, for crisp and high contrasting images in hunting situations. CDS-ZL2 (Custom Dial System ZeroLock 2) with free custom ballistic dial - It is present in certain VX-5HD models, which locks the elevation knob. This prevents the knob from being inadvertently moved or rotated off of zero. The press of a button will let the user dial up two turns of elevation, with an indication for the second revolution. Illuminated reticle - Some variants are available with the additional option of an illuminated reticle, featuring 1-button intensity adjustment. Protective lens covers and Throw Lever - Some of the VX-5HD also come with Alumina Lens Flipback Covers and the new Throw Lever which can be reversed for Left-Handed Bolt Rifle applications.