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 50mm Objective lens. Close focus: 7.62 M. Exit pupil: 5mm. Eye relief: 0.63". Twist-up eyecups. BaK-7 prism glass. Porro prism type. Lead-free glass.