For optimum spotting power, the precise optics of Swarovski are unsurpassed. The precision-made lenses and prisms are coated with Swarovski's own SWAROTOP® and Swarodur® to produce all- around color fidelity and strong, high-contrast images. These patented finishes reduce surface reflection to a mere .2%. These scopes are watertight to a depth of 13 feet, thanks to the internal focusing, and filled with nitrogen to prevent fogging, so you can hunt confidently in any weather. The zoom eyepiece with 20-60x magnification includes a twist-in eyecup, so eyeglass wearers can enjoy a full field of view. The tilting tripod ring sets it to your preferred observation position. The lightweight, yet highly rugged alloy housing is covered in a noise-absorbing rubber armor. Easy-grip focusing ring makes this scope a snap to use. Equipped with an integrated sunscreen that locks at full extension to stop glare and diffused light as well as shields the objective lens from rain or snow. Fits all tripods with 1/4" and 3/8" threads.