Telescope Tube Mounting Ring Holder Set (76mm)

1. This cast aluminum tube ring set features a quick release hinged clamp knob and felt lining to securely attach the telescope's optical tube to the mount and tripod 2. Hinges open to easily install the optical tube, and you can loosen the lock while in use to rotate and balance the tube 3. For astrophotography enthusiasts to shoot spectacular scenery, one of the two rings in the set has a 1/4"-20 piggy back camera adapter, the other has a threaded 1/4"-20 hole Thank you for your understanding. You can remove the piggy back camera adapter and attach the adapter plate for guide scope on the tube ring