80100 HD High Power Monocular Telescope - 80x magnification and 100 mm objective lens. Fully multi-coated lenses improve light transmission and resolution for clearer images. - Wide scope view. True 80x100 viewing with an FMC BAK-4 green-film prism for a compact, durable, high-quality precision design. - Ideal for outdoor use. Designed for outdoor enthusiasts and suitable for hunting, observing animals, mountaineering, camping, travel, hiking, water sports, ball games, watching scenery, driving, concerts, monitoring, and outdoor exploration. - High contrast and bright images. BAK-4 prism and fully multi-coated lenses deliver superior light transmission (up to 99.5% visibility). Built-in low-light level night vision helps in dim conditions. Adjustable eyecup twists up and down easily for optimal viewing with or without glasses.