Field of View: 105-51ft/1000yds means when viewing objects at 1000 yards, you could see an area 105-51ft feet wide. And the spotting scope brings you both a wide field of view and spectacular details with the 20-60x zoom magnification. Nitrogen Filled & O-ring Sealed. Inject nitrogen into the scope's sealed barrel to ensure that the scope is waterproof and anti-fog, effectively preventing moisture from entering.
And the scope can be used even in very harsh environments, living a longer service life. The gear ratio of the dual speed focuser is 1: 10, which makes it easy to achieve accurate focus. The dual speed focuser can provide two focusing speeds by using a set of co-axial knobs, one for fast focusing and the other for fine focusing.
Fully Multi-coated lens means that all lens surfaces and all air-to-glass surfaces are anti-reflective multi-layer coated. The large 80mm FMC objective lens gathers more light for a brighter viewing and offers a nice observation experience especially in low-light conditions like dusk or dawn, and also works great for observing the night sky. K9 Porro Prism + Half Roof Prism.
Porro prism gives you a much clearer 3D image than others and sets along with a much larger field of vision. Porro prism works better whenever you need that extra clear image or wider FOV. So this monocular is great for birding, hunting, and general outdoor use.
Maximum load is 10lb, the mount, tripod legs and extension bar are made of Aluminum. Folded Height 13", Extended Height 16.4". Standard UNC 1/4-20 tripod mounts for spotting scope, binoculars and many other devices equipped. Rubber on the surface of pan head and nonslip rubber feet.Extensive anodic oxidation treatment provides a secure, stable support. This item is in the category "Sporting Goods\Hunting\Scopes, Optics & Lasers\Spotting Scopes". The seller is "svbony_au" and is located in this country: US. This item can be shipped to United States.