The Focus Ring is a compact alternative to the standard Optum Ring System. It allows archers to thread a lens or sunshade into the Optum scope body, reducing overall length, weight, and complexity.
Designed for archers who use a center-drilled lenses or lenses with a reticle, the Focus Ring provides a secure fit while maintaining clear alignment within the scope.
Focus Ring: https://www.shrewdarchery.com/products/optum-focus-ring