The nikons prostaff 7s 10x30 is a lightweight easy to hold all terrain binocular that features an advanced optical system designed to deliver sharper images thanks to fully multicoated eco glass lenses and phase correction coated roof prisms every model in the prostaff 7s series provides the quality brightness and resolution that make it the perfect accessory for almost any outdoor activity waterproof and fog free it features an improved grip for a better handling in all kinds of weather