Aluminum alloy chassis ensures ruggedness. New metal body eliminates uneven weight distribution. Multi-coated optics bring in a large amount of light for vibrant images. High quality soft touch rubber grip texture on sides and bridge. Ultra-smooth focus wheel. 10x Magnification with 25mm Objective lens. Close focus: 4.57 M. Exit pupil: 2.2mm. Eye relief: 0.394". Fold-down eyecups. BaK-7 prism glass. Roof prism type. Lead-free glass.