Leupold BX-1 McKenzie 8x42 Binoculars - Absolute waterproof and fogproof integrity; ready for a lifetime in the field, in all conditions. The durable aluminum housing is shrouded in a rubber armor coating that provides a positive grasp. Delivers a perfectly round exit pupil with virtually no edge distortion and a crisp, clear image. 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. Ergonomic design ensures our products are slim, lightweight, and fit well in your hands no matter what size they are. Fully multi-coated lens system ensures maximum brightness for clarity, contrast, and color fidelity. Phase coated roof prisms significantly increase resolution for a sharp sight picture from edge-to-edge of the visual field. Made with Leupold's Proprietary nitrogen sealing process, which has become the industry standard. Rugged and absolutely waterproof. Slim, in-line design is ergonomic and easy to grip in all weather conditions. Features twist-up eyecups and generous eye relief for comfortable extended viewing. Multi-staged variable height eyecups and smooth, responsive central focus dial make focus easy to achieve and maintain. Max magnification: 8Object size: 42 Shadow Gray Finish Weight: 22.10 oz Exit Pupil (High:) 5.30mmEye Relief (High): 17.70mmInterpupillary Distance (Low) 56.00mmInterpupillary Distance (High) 74.00mmClose Focus Distance: 10ftClose Focus Distance: 3.00mmLength: 5.80 in Angular FOV (High) 6.10 degreesTwilight Factor High: 18.30Linear FOV (ft/1000 yd) High: 330.00