900x25 HD portable magnification powerful long-distance BAK4 binoculars telescope Jumelles folding binoculars low-light for hunting camping

Specifications: Mode: 900*25 Materials: Rubber and metals Prism material: BAK4 Lens coating: Blue film lens, Green film objective lens Field of view: 900 m/90000 m Size: 9*10.5*4 cm Color: Black Package: One piece Feature: 1. Waterproof for life, which can better extend the service life of the telescope. Easy to handle in any harsh environment. 2. BAK4 prism and multi-coated lens to improve light transmission and image clarity. 3. Central focusing handle for smooth operation. 4. Wide-range green film coating to increase light transmittance and make the imaging color more full. 5. Lightweight and compact, good for camping, hiking, concerts, bird watching, hunting, travel, golf, sports events, and other outdoor activities. *Metal platform, better quality and improved performance against falls, can effectively extend the service life of the telescope, which is unmatched by other plastic platforms! Note: 1. Keep a proper distance from the exit pupil with the lens. If the markings are too close or too far, you will see dark shadows in the field of view during observation, and you will not be able to get a full viewing circle. 2. Adjust the distance between the two eyepieces. Adjust the distance between the lens barrels to match your eye pupil distance so that the images overlap. 3. Focus. Slowly turn the focusing wheel to focus and adjust sharpness! 4. Do not use the telescope to directly observe the sun, as this will cause severe damage to the eyes or even blindness. Package: 1 * Microscope 1 * Lens cleaning cloth 1 * Rope 1 * Storage bag 1 * Lens cleaning cloth