This TeleVue digital camera adapter allows you to attach a digital camera with 49mm filter threads on its lens to certain TeleVue eyepieces for "afocal" imaging through the eyepiece. Digital cameras with 49mm threads include, but are not limited to, the Minolta Dimage 7 and Dimage 7i. It may be possible to use other cameras with slightly different filter threads, such as the 52mm thread Sony Cyber . . .