With their stunning optics providing crisp clear & bright images with staggering light transmission you will not be surprised that the Endurance range is head & shoulders above all competition in their price range. Where ED glass is utilized the optics show reduced colour fringing & the fully multi-coated lenses provide high resolution images ensures no details are lost when viewing at long or short distances down to 2m. The effortless focusing & impressive depth of field makes these binoculars quick & easy to use. Being water & fog proof & with a high grip outer Endurance are designed to battle the elements.