Bresser Montana 8.5x45 ED Glass Binocular 8.5x Magnification, 45mm Objective, 5.29 Exit Pupil 115m Field of View at 1000m, Twist Up Eye Cups, Roof Prism Fully Multi Coated, ED Glass, Magnesium Body, 2.5m Near Focus Dioptre Setting +/- 2D, 28.03 Lumen Rating, 19.56 Twilight Rating, Nitrogen Purged, Waterproof, Leather Case