For the Century wide-angle
converter (0VS-07CV-HDS) no ring is required.
For the Century wide-angle converter (0VS-08CV-72) the 105mm to
90mm. adapter ring Item #0250-0139
is required.
For the Century tele converters (0HD-20TC-HDS and 0VS-16TC-HDS) no
ring is required.
Sony HVR-Z1 / HDR-FX1 with MB-250 / MB-210 on 15mm rail
support mattebox: For better support and safety for
your camera, we recommend using a 15mm mattebox support.
This support has a flat base and allows the use on all tripods.
Only if a wide-angle converter is used on the Camcorder , the
MB-250 mattebox is needed.