Century 0FA-7X90-00 (FA-7X90-00 & FA7X9000) 90mm Slip-on Adapter Ring
This adapter allows you to attach the following Century attachments to a lens with a 90mm front diameter:
* .7X/.5X WIDE ANGLE ADAPTER SET
* .7X WIDE ANGLE ADAPTER
* 1.6X TELE CONVERTER
* .8X WIDE ANGLE CONVERTER
The 0FA-7X90-00 screws into the thread of the attachment & and then slips onto the camera lens. It is secured by a single stainless steel lock screw.