For hunting from dusk ‘til dawn, the Vortex Talon HD features HD glass, XR fully multi-coated lenses, dielectric prism coatings, phase correction, o-ring seal, argon gas purging, roof prism, ArmorTek scratch-resistant coating, rubber armor, adjustable eyecups, center focus wheel, diopter, and tripod compatibility. The view is as sharp as talons.