Set of two cast-aluminum telescope tube rings with quick-release, hinged clamp knobs and felt lining
Tube rings allow you to securely attach a telescope optical tube to a mount and tripod
Sold in sets of two rings with mounting bolts and washers are included
One telescope tube ring has 1/4"-20 piggyback camera adapter; the other has a threaded 1/4"-20 socket
Inside tube ring diameter is 76mm
Our cast-aluminum tube rings feature quick-release, hinged clamp knobs and felt lining. Designed for use with the Orion Oberserver 70, they fit some other brands of mounts as well. One of the two rings in each set has a 1/4"-20 piggyback camera adapter on it, the other has a threaded 1/4"-20 hole. The piggyback camera adapter can be removed for mounting an adapter plate for a guide scope on top of the tube rings. Set of two rings includes mounting bolts and washers. Inside diameter (ID) is 76mm/3". Choose the size that matches the outside diameter of your telescope tube. One-year limited warranty.