MaiFeng MFD-2 10X42 BAK4 HD Waterproof Telescope Dual Focus Phone Monocular Night Vision Prism Spyglass

Specification BrandMaifengModel10x42Magnification10 30xEyepiece21mmObjective lens42mmField of vision42mHorizon2 7CoatingWide band multilayer coatingPrismBAK4Focus5mEye maskSpin upRubber sheathPVCNet weight240gSize170x90x70mmWaterproofLife WaterproofBrightness25Twilight Index22 36 Features 1 You can take photos with your mobile phone The portable design brings you great fun and you can share the beautiful scenery at any time 2 FMC wide band green film can improve the light transmittance brightness and color reducibility of the lens 3 42mm large objective lens sufficient light input brighter imaging 4 Higher refractive index clear and sharp imaging The refractive index of bak4 light is higher than that of BK7 which can effectively avoid dark edges and make the image clearer 5 21mm large eyepiece military quality large eyepiece wider and clearer Package included 1 Telescope1 Mirror cloth1 Telescope bag1 Package Box