Highly rated binocular lens covers include tethered push-on caps produced by manufacturers such as Vortex and Eagle Optics, which fit a range of binocular brands and sizes, and flip-down lens covers by companies such as Meopta, Zeiss and Swarovski, which fit specific brands. Meopta also offers a range of fold-down ocular lens covers, while Eagle Optics and Swarovski offer one-piece eyepiece rainguards that clip across the top of the binoculars.
Eagle Optics sells sets of binocular lens covers in small, medium and large sizes. Made from a stretchable rubber, these covers fit a number of different binocular brands in addition to the Eagle Optics brand. Customer reviews indicate the range of brands and models that each size fits, including Nikon, Swarovski and Minolta. The company has a showroom in Middleton, Wisconsin, and sells binoculars, scopes and accessories in store and online.
Online specialist retailer B&H Foto & Electronics offers new and replacement tethered and flip-down lens covers and ocular caps for a wide range for binocular brands, including Meopta, Zeiss, Vortex and Fraser. Popular lens sizes are 42 millimeter and 32 millimeter, but smaller, larger and universal sizes are also available. Online retailer SportOptics.com sells objective and ocular lens covers for Meopta, Swarovski and Zeiss binoculars.