Bushnell 8x42mm Engage Binocular - Black Roof Prism ED/FMC/UWB [BEN842]8x42mm Engage Binocular Black Roof Prism ED FMC UWB See more of the field at once, whether its at the range or on the hunt. Features: ED Prime Glass Bushnells highest quality glass delivers amazing color, resolution and contrast, even in low light conditions. Exclusive EXO Barrier Protection Bushnells best protective lens coating molecularly bonds to the glass, repelling water, oil, dust, debris and preventing scratches. Dielectric Prism Coating