Leupold 11989 Bx-2 Acadia Roof Binoculars, Black, 8 x 42mm Absolute waterproof and fog proof integrity. Each is ready for a lifetime in the field, in all conditions Large, tactile focus dial is easy to find and use, even with gloved hands, which gives you the precision focus you need to pick antlers out of the trees or hide out of the brush The diopter focus paddle allows you to precisely focus your binoculars, compensating for differences between your eyes Phase coated roof prisms significantly increase resolution for a sharp sight picture from edge-to-edge of the visual field Features an extremely smooth focusing system for fine adjustments