The TD-842ED, 8x42mm is a part of our 3D/ED Binocular line and combines our HD optical coating technology with ED glass to give you the brightest, and clearest image possible. The TD-842ED binoculars are ideal for hunting or birding. Rubberized armor coating makes this full-sized 3D binocular rugged and shock proof. The body is nitrogen purged and O-ring sealed making them waterproof and fogproof. Extra long eye relief with twist down eyecups make this full-sized 3D ED glass binocular perfect for eyeglass wearers. The precisely placed thumb grooves, “just right” texturing and all-over lightweight body ergonomics make the 3D Series binoculars perfect for long hunts or bird watching expeditions. The TD-842ED is also perfect outdoor activities or sporting events.