PowerView 2 offers long lasting durability even in harsh elements. Aluminum alloy chassis provides durability without unnecessary weight. Modern design with soft touch rubber and brushed metal texture. Multi-coated optics draw incredible amount of light for clear and vibrant images. Folding Roof Prism design provides a more compact binocular. 8x Magnification with 21mm Objective lens. BK-7 Prism glass. Exit pupil: 2.6mm. Eye relief: 10mm. Close focus: 21ft. Field of view @ 1000yds: 378ft.