Bushnell Engage 10x50 ED BinocularsThe Bushnell Engage 10x50 ED Binoculars are among the top performing binoculars in their class, ideal for low light viewing. For harsh environmental conditions, Bushnell's proprietary EXO Barrier lens coating repels water, dirt and oil to maintain a crystal clear view. The 50 mm objective lenses are made of ED (extra low dispersion) glass and fully multi coated to capture and transmit a maximal amount of light to your eye, a critical feature during