10-30x30 HD Zoom Monocular Waterproof Mini Telescope Camping Bird Watching Night Vision

Specifications Objective lens diameter30mm 1 18inchEyepiece diameter15mm 0 59inchField of view angle2 6 4 6Field of view45 5 80 5m 1000mOutlet diameter4 2 1 7mm 0 17 0 07inchExit distance17 14mm 0 67 0 55inchNearest focal length3m 118 11inchPrism systemBAK4Lens coatingFMC full width green filmFocusing systemCentral focusSize13 2x 4 5x 4 5cm 5 20x 1 77x 1 77inchPackage size15x 6x 6cm 5 91x 2 36x 2 36inchWeight230gFeatures All optics glass optical lenses the whole surface with the multilayer broadband AR coating and the imaging is impartial and not distortion The eyeglass with ultra strong light transmittance and the function of focusing that can let you view objects under the condition of shimmer Exceptional optics with BAK4 prisms fully multi coated optics ED prime glass and PC 3 Phase Coated prism Comfortable twist up eyecups The big eyepiece with green film coated has large view and comfortable observation The big objective is increased the photon count the imaging is more clearer and brightness Easy to carry with a lanyard Package Includes 1 xMonocular1 xStorage bag1 xWiping cloth1 xLanyard