#19751 - Gemini 120 Big-Bore Focusing Rotator

Description Resources Software Special variant of the Gemini Focusing Rotator with large 120mm (4.72”) opening. Re-designed thrust bearing allows even more light throughput and heavier loads than the original Gemini 96mm Focusing Rotator. Optec engineers have developed a completely new concept for combining telescope focus and camera rotation functions into a single robust, yet compact package. Rather than simply adding a rotator onto the end of a focuser drawtube, Gemini was designed from inception with a rotating drawtube providing superior strength and rigidity for heavy camera payloads. Featuring four lead-screws and four linear bearings, Gemini can easily handle 10-kg. (22-lbs.) payload packages without flexure. Full 360-degree rotation is a built-in function of the Gemini with a full 1/2" of linear travel. At the center of travel, Gemini measures a mere 2.45" in thickness. Like all Optec focuser products, Gemini includes a remote temperature probe for automatic