The Engage EDX - A best-in-class optic with industry-leading features. The entire line is backed with the all-weather assurance of Bushnell's exclusive EXO Barrier lens coating - it repels water, debris, oil and fog. The fully multi-coated optics offer maximum brightness and clarity, and they're housed in a lightweight and rugged magnesium chassis. ED Prime Glass and a locking eyepiece diopter ensure razor sharp images every time. The PC3 phase coating brings to the resolution to the highest level, and the dielectric prism coating keeps light transmission high. The result is the best viewing experience perfect for birding, hunting, or general observation. ED Prime Glass - Bushnell's highest quality glass delivers amazing color, resolution and contrast, even in low-light conditions. Exclusive EXO Barrier Protection - Bushnell's newest and best protective lens coating molecularly bonds to the glass, repelling water, oil, dust, debris and preventing scratches. Dielectric Prism Coating - Applied to the prisms, it ensures vivid color reproduction and allows 92% light transmission for bright images. PC-3 Phase Coating - Applied to the prisms, it enhances resolution and contrast. Bushnell Engage EDX 8x42mm Black Binoculars BEN842