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