W9 10X42 Portable Mini TescopeMod:10X42-5-01-1Structure:BinocularsFunction type:Normal tescopeUse:Civil TescopeInstrument Magnification:10 Times 1. Specifications:Objective lens diameter: 42mmPrism: BAK4Size: 15.5x13cmHorizon: 6 degrees, 105M/1000MExit distance: 21.5mmNear focal length: 5MInner and outer materials: the main body of the lens body is metal, and the exterior is high-grade astic rubber.Focus type: center focus, right eyepiece focusCoating: Multi-layer wide filmWaterproof performance: nitrogen-filled waterproofNet weight: 620 gramsGross weight: 780 gramsThe package includes:1x tescope1x tescope bag1x lanyard1x instruction manual? 2. Waterproof design, the mirror body is filled with high-purity nitrogen, waterproof and mildewproof, and the daily use of rain, damp and so on will not have a big impact. 3. The diameter of the exit pupil is 5.25mm, and the exit distance is about 21.5m. It is especially suitable for users with e. At present, the internationally popular rotary eyepiece cover design is more convenient to use. 4. The prism material is BAK4, and the light transmittance is higher. The tescope mirror body is made of all metal (aluminum alloy). 5. Multi-layer coating, very beautiful, using phase coating technology, the coating is very uniform. The eyepiece cover is very convenient to use.