The Vortex Razor HD line was completely redesigned for 2011. A touch of the buttery smooth focus wheel brings your trophy into focus as you scan the landscape. That’s when you’ll appreciate what carefully hand-selected prisms and premium HD (High Density) extra-low dispersion glass do for your view! you’ll experience the ultimate in resolution and color fidelity...nothing less than astonishing...and glassing confidence in the critical low light of dawn and dusk. With the sleek, well-balanced Vortex Razor HD binocular in your hand, you’ll have the very best. Vortex Optics Vortex Razor HD 12x50 Binocular