VicTsing 18 x 52 Monocular Dual Focus HD Optics Zoom Telescope Portable Monocular Scope for Wildlife, Hunting, Camping, Birds Watching, Camping 18X52 MAGNIFICATION,which uses compact portable design and its multiplying power is 18 times. And, the main part of the telescope body is metal material and the outside shell is high-quality flexible rubber. It has the all-optics glass optical lenses; the whole surface with the multilayer broadband AR coating and can offer image that is impartial and has no distortion. Moreover, the eyeglass with ultra-strong light transmittance and has the function of focusing light that can let users view objects under the condition of shimmer, and this monocular offers a 18x magnification and a 52mm objective diameter. It is suitable for Golf, Camping, Hiking, Fishing, Birdwatching, Concerts, etc. With compact portable design; Focus Mode: Dual Focusing; Multi-coated lens and twist-up eyecup; The each ends of the telescope has a cover (against water and dust)The big eyepiece with blue film coated, has large view, and comfortable observation; The big objective is increased the photon count, the imaging is more clearer and brightness The distance of exit pupil: 15mm; Multiplying power: 18 times; The texture of the prism: BAK4; Caliber: 52mm; Prism system: Roof Prism; The viewing filed: 103m/98500m; Coating film: FGMC; Focus mode: Eyesight adjustment; Focus system: Eyesight adjustment The monocular offers an 18x magnification and a 52mm objective diameter; All-optics glass optical lenses, the whole surface with the multilayer broadband AR coating and the imaging is impartial and not distortion. And, the eyeglass with ultra-strong light transmittance and the function of focusing that can let you view objects under the condition of shimmer.