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Optec Gemini 96 Focusing Rotator
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 Optec Gemini 96 Focusing RotatorOptec Gemini 96 Focusing Rotator 

Optec Gemini 96 Focusing Rotator

£3,625.00✓ 2 year warranty

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Usually shipped 10-15 working days.

About this product

Model:  optec_gemini_19750
Part Number:  19750

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 draw tube, Gemini was designed from inception with a rotating draw tube 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 centre of travel, Gemini measures a mere 2.45" in thickness. 

To maintain a flat, rigid base for heavy camera packages, Gemini's shell consists of two parallel plates machined from MIC-6 tool plate providing flatness within 0.001" (25 microns).  Seven precise stand-off spacers maintain the 2.2" separation of these plates.  The rotating draw tube is moved linearly with 1/2" of total travel using a premium timing belt driven by a high torque stepper motor.  The entire package is accented with a beautiful carbon fibre wrap.  Dual RJ45 connectors provide connection to the Gemini Control hub.  The independent rotating draw tube is supported by a custom X-cage bearing system supported by large, 6mm chrome ball bearings. 

Support for Multiple Telescopes

Featuring identical OPTEC-4300 mechanical interfaces front and back, the Gemini can be easily fitted to most any large telescope OTA.  Recessed oval point setscrews provide three-point direct contact with the heavy wall OPTEC-4300 dovetail mount.  Gemini's clear aperture of 3.75" is maintained through each adapter, passing even large light cones through to the camera image plane without vignetting.

On the camera side, a typical configuration might include a 4300 receiver for the Optec-DSI 3.5 High Performance spacer sets configurable to 1/4" increments when additional spacing is needed. 

Currently designed telescope adapters include support for the AG Optical iDK's, Ceravolo Optical Systems Astrographs, Meade and Celestron 10-inch and larger class SCT, and Plane Wave Secure-Fit. 

Please contact us for a list of suitable Telescope Adaptors.

 

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