ETZRYSYB Telescope Binoculars Powerful Nitrogen-filled Waterproof Long Range Monocular Optics For HuntingSports

Very suitable for hiking, camping, bird watching, wildlife, sports, concerts, travel, and scenic viewing. The lens is made of all-optical glass, with FMC multi-layer coating for transparent imaging, sharp colors and no chromatic aberration. The large-diameter objective lens is 42MM, which has large luminosity, high brightness, brighter and clearer imaging colors, and no chromatic aberration. The refractive index of BAK4 prism is higher than that of BK7, which can effectively improve the transmittance, and the image is clearer and more transparent. The inside of the mirror body is pressurized and filled with air, which can effectively block the entry of water vapor and is suitable for harsh outdoor environments. The adjustment handwheel adopts an all-metal diamond texture anti-slip design, which makes adjustment easier and labor-saving Whether it's keeping it at home to observe the moon or planets, or taking this travel telescope on the road to watch birds and appreciate scenery, it's a great gift for beginners to enjoy various family entertainment times.