Professional High Magnification 20x50 HD BinocularsProfessional HD binoculars with wide field of view, smooth and sturdy, 20x magnification, 50mm objective lens. 26mm large eyepiece binoculars provide larger images and ensure clearer details, perfect compact binoculars for adults and children, especially designed for any outdoor enthusiast. These long-range binoculars are suitable for bird watching, hunting, travel, stargazing, concerts, opera, sightseeing and astronomical observation. high quality optics & Low Light Night Visio& FMC coating and BAK-4 prismZIYOUHU binocular uses the BAK4 green coated and FMC Lens,its FMC(fully coated lenses) film aspheric lens provides superior light transmission, providing you with high definition vision, brighter field of view and true color images.It can be used at night,50mm lenses are larger than usual to give lots of light-gathering power, so the more effective they will be in low light. Deliver clear vision in weak light co