When you want the best optical performance - rain or shine - grab a pair of Orion Otter ED binoculars and prepare to be impressed! Waterproof Otter ED binoculars feature fully multi-coated ED glass optics and phase-coated BAK-4 roof prisms to deliver exceptionally clear, true-color views in any weather.
In binoculars without ED optics, light is scattered as it passes through the lenses and prisms, which reduces clarity and causes color fringing, resulting in an undesirable viewing experience. The specially made extra-low dispersion glass found in our Otter ED binoculars eliminate color fringing by significantly reducing light scattering so you can enjoy true-color performance and crystal-clear views.
