20-60X60 Spotting Scope Zoom Monocular Powerful Telescope Bak4 Prism Waterproof Anti-Fog For Camping Bird Watching Landscape Specification: Model: 20-60x60 Magnification: 20-60X Objective lens aperture: 60mm Eyepiece diameter: 14mm Prism type: BaK4 prism Lens coating: FMC green film Field of view size: 96-47ft@1000yds 31-18m@1000m Pupil distance: 12mm Visible distance: 10m- Outlet aperture: 4-1.3mm Color box size: 300x75x140mm Features 1.Light weight and easy to carry. Suitable for carrying when you go out to observe, also can be easily put in the car. 2.Comes with a portable tabletop tripod. Not easy to shake when using a tripod for viewing. 3.60mm large objective lens: strong light gathering ability, sufficient light, good field of view, and a retractable sunshade on the objective lens barrel. 4.20-60x zoom. The magnification can be changed by the magnifying lens focus wheel at one end of the eyepiece, which is convenient to set when observing birds and landscapes. 5.Injecting nitrogen into the telescopes sealed barrel can effectively prevent moisture from entering, waterproof and anti-fog, and can be used normally even in very harsh environments, greatly improving the service life.