The Professional Military High Power Binoculars is a top-of-the-line model (model number 40X22) with an 8x magnification and a 22mm objective lens diameter. Featuring a CENTRAL focus type and a 15 degree field of view, these BAK4 prism binoculars are made from high-quality metal materials and have a special FMC lens coating (fully-multicoated) for ultimate clarity. With an IPX4 water resistance level, these binoculars are the perfect choice for any outdoor or military activity, providing precise and reliable vision without the use of any potentially harmful chemicals.