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For Sale: Optec Gemini Focusing Rotator

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For Sale: Optec Gemini Focusing Rotator

Hot Sky product from 2016

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.”

Online price is $3595 offering it for $2600. I am only selling this as I have gone a different way with focusing solutions.

Focuser is in excellent shape. Great for heavy, large sensor format cameras.


  • Gemini Focuser
  • Optec Focusing rotator controller
  • Cables for rotator and focus functions and a USB to focus controller cable
  • Temperature Probe
  • Power Supply
  • Long 5/64” Allen Key for attaching focuser dovetails
  • 72mm male thread Precise Parts adapter
  • Precise Parts adapter for 2" nose piece 


I also have some Precise Parts adapters for a Tak FSQ106ED and an 11” or 14” SCT if buyer is interested at additional cost.

PayPal buyers are responsible for 3% fee. Checks or Money orders must clear brfore shipping.
Shipping from 01030 and insurance are also the buyer’s responsibility.

Price is firm. Please, no low ball offers.

CONUS only.