Naturally the most powerful binoculars we make have a whole lot to offer. Designed around our stringent Eterna specifications the new Full Size series is for those who want big glass in a rugged ergonomic mid size frame. Not only is the objective sizable but so is the power. Available in three powers—8X 11X and the High Power 15X the highest fixed-power binocular we build—these Eternas are jewels when viewing over long distances. The benefits of big glass are often overshadowed by the enormous weight of most binoculars this size. Not in this case. The Eterna Full Size series is lightweight and nimble making each model desirable for the long haul. The Eterna brings you a sharp image with the help of BaK-4 prism glass state-of-the-art phase coating and a readiness to get the job done when it counts the most. Aside from all the bells and whistles this binocular is a trooper through and through. See why the Eterna Full Size is the total package for your most grueling challenge.