Novagrade's Universal Tablet Digiscoping Adapter enables you to mount virtually any tablet on a spotting scope, binocular, or telescope eyepiece to take photos or videos. An adjustable anodized aluminum arm clamps onto tablets from 7 to 13" (17.8 to 33 cm), and a collet fits over eyepieces with outside diameters from 1.5 to 2.4" (39 to 60.75mm). The collet has a twist-lock mechanism to secure it on the eyepiece for stability and security.