I have an as new Takahashi tube ring that fits the FS-78, the FC-76 or Sky-90 scopes. It has the additional threaded 1/4"-20 hole for use on a photo tripod as well and the 1/4-20 stud for mounting a camera on top. No paint chips, not even where the locking knob always hits the ring. Truly like new. felt is perfect too. They sell for $129, mine is $95 shipped.