- Well known for integrating powerful rangefinders into optics, Burris introduces the Signature LRF 10x42 binocular for fast and precise ranging with an eye safe laser that measures targets out from 5 to 2,600 yards or 2,377 meters. Ultra-sharp HD glass and an easy-to-read display offer comfortable glassing and blazing fast ranging for both hunters and shooters. Three ranging modes for greater versatility: Auto, Sport and Hunt. Distances can be displayed as line-of-sight or horizontal with angles of degree. Tripod Adaptable. Outer surfaces are rubber armored for protection and a sure grip.