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Orion 100 mm Tube Rings - 3.9" - 07371

SKU: ORI-07371

Orion 100mm ID (3.9”) Tube Rings

Orion Telescope Tube Rings allow you to securely attach a telescope optical tube to any Orion Equatorial or Altazimuth telescope mount. This 100mm ID ring set is made of cast-aluminum and features quick-release, hinged clamp knobs and a soft felt lining. One ring has a 1/4"-20 piggyback camera adapter, while the other has a threaded 1/4"-20 hole. For use with Orion EQ-1, EQ-2, EQ-3, or AZ-3 telescope mounts.