1. The large eyepiece is coated with an anti-reflection blue film, which has a large field of view and is comfortable to watch; 2. The large objective lens increases the amount of light, and the image is clearer and brighter; 3. All-optical glass lens, multi-layer broadband coating on the entire surface, no color cast Without distortion, it is pleasing to watch, and the super light transmittance and condensing function of the lens make it visible in low light.Waterproof and anti-fog life waterproofScope of application: different purposes such as tourism, viewing, ball games, concerts, sports meets, sailing, fishing, inspections, etc.Exit pupil diameter 12.7mmel 20x50Exit pupil distance 4mmMagnification 10 timesPrism material Bak4Caliber 50mmPrism system Paul prismField of view 168Recently focused 5MCoated blue nal filmMid-focusingColor black, brown fan, sand fanMid-focusing of the focusing systemTripod connection hole noWeight about 634Gsize:20.2X19.2X7.3cmMaterial:plasticcolour:/BlackPackage Contents:1 x Storage bag1 x Lanyard1 x telescope1 x Wiping clothOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.