Optec Inc. Gemini 96 Focusing Rotator: Advanced Focus and Rotation for Heavy Camera Payloads

Innovative Design: A unique concept that integrates focus and camera rotation functions into one robust, compact unit.

Rotating Drawtube: Features a rotating drawtube for superior strength and rigidity, ideal for heavy camera payloads.

High Payload Capacity: Capable of handling camera packages up to 10 kg (22 lbs.) without flexure, ensuring stable and precise imaging.

360-Degree Rotation with Linear Travel: Offers full 360-degree rotation and 1/2" linear travel, providing flexibility in imaging orientation and focus.

Compact Profile: At the center of travel, Gemini measures just 2.45" thick, making it a space-efficient solution for advanced astrophotography setups.

Automatic Temperature Compensation: Includes a remote temperature probe for automatic temperature compensation, maintaining sharp focus in varying conditions.

Gemini Commander Software: Comes with convenient software featuring a wizard to determine the telescope's temperature coefficient (TC).

Precision Engineered Structure: Gemini's shell is crafted from MIC-6 tool plate for flatness within 0.001" (25 microns), supported by precise stand-off spacers.

Premium Timing Belt Drive: Utilizes a high torque stepper motor with a premium timing belt for smooth, reliable linear motion.

Carbon Fiber Accents: The unit is elegantly finished with a carbon fiber wrap, adding an aesthetic appeal to its technical prowess.

Custom X-Cage Bearing System: The rotating drawtube is supported by a custom X-cage bearing system with large 6mm chrome ball bearings for enhanced stability.

Dual RJ45 Connectivity: Features dual RJ45 connectors for easy connection to the Gemini Control hub, ensuring seamless operation.

Ideal for Professional Astrophotography: A perfect choice for professional astrophotographers seeking a high-quality, integrated focusing and rotating solution.

Specifications

Compatibility

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, the Gemini package now includes our # 19830 OPTEC-4300 to DSI threaded adapter. This part converts the camera side to a receiver for any of our Optec-DSI 3.5 High Performance spacers configurable to 1/4" increments when additional back-focus spacing is needed.

Currently designed telescope adapters include support for the AG Optical iDK's, Celestron , Ceravolo Optical Systems Astrographs, Meade 16-inch class SCT, Plane Wave Secure-Fit, and Takahashi telescopes.

Additional adapters available through PreciseParts .

Specs

Focusing Rotator Physical Specifications:

Clear Aperture: 3.75" (95mm)
Back-Focus Usage: 2.2" to 2.7" (55.9 to 68.6mm)
Focuser Travel: 0.5" (12.7mm)
Focuser Resolution: 0.11 microns per step
Rotator Resolution: 600 steps per degree
Minimum Overall Thickness: 2.2" (55.9mm) [Full IN position]
Dimensions: 9.4" x 7.4" (239mm x 187mm)
Weight: 6 lb. 6 oz. (2.9 kg)

Gemini Controller Hub Specifications:

Controller Hub Specifications:

Length: 5.1" (130mm)
Width: 3.2" (81mm)
Height: 1.0" (27mm)
Weight: 10 oz. (285 g)
Mounting Holes: Four 4-40 x 1/8" depth (reverse side)
Case Material: 6061 aluminum, anodized black.

Gemini Hub Port Connections:

Focuser: RJ45 socket for standard Cat-5e/Cat-6 cable to Focuser port
Rotator: RJ45 socket for standard Cat-5e/Cat-6 cable to Rotator port
Power: 12VDC input, 2.5 x 5.5mm plug, center pin positive
Network: Standard RJ45 Ethernet socket
Hand Controller: RJ22 socket for standard telephone handset cord
Serial: RJ12 socket for Optec USB/Serial cable
Wireless: 802.11 WiFi option

Country

Country

Optec Inc. Gemini 96 Focusing Rotator

Country

Country