DG Ring 43 : The ring is used to attach a digital camera to the Digital Camera Adapter, in order to use Digital Cameras with Vixen LV eyepieces. This ring is for 43mm size front filter cameras that include the Olympus CAMEDIA 2020, 3030Z, 2500L, the Casio 8000SX and Panasonic Camcorder NV-DJ100.