Nikula W9 10X42 Portable Mini Telescope Outdoor Mountaineering HD Binoculars Model:10X42-5-01-1 Structure:Binoculars<!-- Span--> Function type:Normal telescope Use:Civil Telescope Instrument Magnification:10 Times 1. Specifications: Objective lens diameter: 42mm Prism: BAK4 Size: 15.5x13cm Horizon: 6 degrees, 105M1000M Exit distance: 21.5mm Near focal length: 5M Inner and outer materials: the main body of the lens body is metal, and the exterior is high-grade elastic rubber. Focus type: center focus, right eyepiece focus Coating: Multi-layer wide film Waterproof performance: nitrogen-filled waterproof Net weight: 620 grams Gross weight: 780 grams The package includes: 1x telescope 1x telescope bag 1x lanyard 1x 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 eyes. 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 telescope 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.