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The Standard EYESHIELD from Field Optics Research is designed to attach to standard size binocular with eyecup diameters from 1.45 inch to 2.15 inch.
The EYESHIELD is a flexible molded rubber material that connects to the eye piece of the binocular. The EYESHIELD cradles your eye and prevents ambient light from entering into the space between your eye and the binocular eyepiece that causes lens glare. An added benefit is the EYESHIELD protects the eyes from wind, rain, snow and dust. This is a must have for everyone who uses binoculars.