Vortex Optics Golden Eagle HD 15-60x52 Second Focal Plane Riflescopes The Golden Eagle HD is specifically designed for competitive shooters in F-Class, Bench Rest and other shooting disciplines with targets at known distance. A finely subtended, second focal plane reticle and 1/8 MOA clicks help you make subtle adjustments. High density, apochromatic lens elements are index matched and generate sharp, high definition images. Premium, XR anti-reflective coatings deliver maximum brightness at the highest magnificaiton. A side focus adjustment eliminates down range parallax. An aperture stop ring broadens your depth field allowing you to more easily observe mirage and wind indicators while keeping your target in focus. A 30mm maintube machined from a single piece of aircraft grade aluminum provides a highly reliable platform for taking precision shots. At 29.5 ounces, you'll be able to adhere to strict competition limits. O-ring sealed and argon purged, the Golden Eagle delivers waterproof and fogproof performance. Armortek coatings protect the lenses from scratches, oil, and dirt.