Leica 10x42 Geovid BRF Binocular Range Finder (Yards) Observing andRanging combined in a high-performance binocular: It saves time and cuts down weight, if compared to using two separate devices (binocular and LRF) High optical performance in low-light: Even the smallest details are easily recognizable, due to high contrast and edge-to-edge sharpness Compact: As compact as a regular binocular, with central focusing and a center hinge. Robust: Leica HDCTM-coating, Aluminum housing, soft-touch rubber armor Watertight to a depth of 5m or 16.4 feet.