{"product_id":"19760","title":"#19760 - Gemini GEN2 Focusing Rotator","description":"\u003cdiv id=\"preview-tabs\"\u003e\n\t\u003cdiv class=\"tab\" id=\"tabdescription\"\u003e\n\t\t\u003cbutton id=\"tab-button-preview-1\" class=\"tablinks active\" onclick=\"openTab(event, 'tab-content-1', 'preview-tabs')\"\u003eDescription\u003c\/button\u003e\n\t\t\u003cbutton id=\"tab-button-preview-2\" class=\"tablinks\" onclick=\"openTab(event, 'tab-content-2', 'preview-tabs')\"\u003eCompatibility\u003c\/button\u003e\n\t\t\u003cbutton id=\"tab-button-preview-3\" class=\"tablinks\" onclick=\"openTab(event, 'tab-content-3', 'preview-tabs')\"\u003eSpecifications\u003c\/button\u003e\n\t\t\u003cbutton id=\"tab-button-preview-4\" class=\"tablinks\" onclick=\"openTab(event, 'tab-content-4', 'preview-tabs')\"\u003eOptions\u003c\/button\u003e\n\t\t\u003cbutton id=\"tab-button-preview-5\" class=\"tablinks\" onclick=\"openTab(event, 'tab-content-5', 'preview-tabs')\"\u003ePackage Contents\u003c\/button\u003e\n\t\t\u003cbutton id=\"tab-button-preview-7\" class=\"tablinks\" onclick=\"openTab(event, 'tab-content-7', 'preview-tabs')\"\u003eSoftware\u003c\/button\u003e\n\t\u003c\/div\u003e\n\t\u003cdiv id=\"tab-content-1\" class=\"tabcontent\" style=\"display:block;\"\u003e\n\t\t\u003cp\u003eOptec’s legendary Gemini focusing rotator is now in its second generation with a fully integrated control circuit negating the need for an external control hub. Communication with a host computer is now available through a standard USB-C cable or via ethernet connection with the included Cat-5e\/6 cable.\u003c\/p\u003e\n\t\t\u003cp\u003eOptec 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.\u003c\/p\u003e\n\t\t\u003cp\u003eLike all Optec focuser products, Gemini includes a remote temperature probe for automatic temperature compensation. Simply attach the temperature probe anywhere in the linear response zone of your OTA (usually the tube or truss assembly) and Gemini will automatically keep the camera package in sharp focus. The Gemini Commander software provides a convenient wizard to help determine your telescope's TC or temperature coefficient.\u003c\/p\u003e\n\t\t\u003cp\u003eTo maintain a flat, rigid base for heavy camera packages, Gemini's shell consists of two parallel plates machined from ATP5 tool plate providing flatness within 0.001\" (25 microns). Seven precise stand-off spacers maintain the 2.2\" separation of these plates. The rotating drawtube 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 fiber wrap. The independent rotating drawtube is supported by a custom X-cage bearing system supported by large, 6mm chrome ball bearings.\u003c\/p\u003e\n\t\t\u003cp\u003eThe second generation Gemini now includes a fully integrated control circuit.  No external hub is required.\u003c\/p\u003e\n\t\u003c\/div\u003e\n\t\u003cdiv id=\"tab-content-2\" class=\"tabcontent\"\u003e\n\t\t\u003cp\u003eFeaturing identical\n\t\t\t\u003cspan style=\"color: rgb(35, 35, 192);\"\u003e\n\t\t\t\u003c\/span\u003e\n\t\t\t\u003ca href=\"https:\/\/optecinc.us\/collections\/optec-4300\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"color: rgb(35, 35, 192);\"\u003eOPTEC-4300\u003c\/a\u003e\n\t\t\tmechanical interfaces front and back, the\n\t\t\t\u003cstrong\u003eGemini\u003c\/strong\u003e\n\t\t\tcan 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.\n\t\t\t\u003cstrong\u003eGemini's\u003c\/strong\u003e\n\t\t\tclear aperture of 3.75\" is maintained through each adapter, passing even large light cones through to the camera image plane without vignetting.\u003c\/p\u003e\n\t\t\u003cp\u003eOn the camera side, the Gemini package now includes our #\n\t\t\t\u003ca href=\"https:\/\/optecinc.us\/products\/19830\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"color: rgb(35, 35, 192);\"\u003e\n\t\t\t\t19830\u003c\/a\u003e\n\t\t\tOPTEC-4300 to DSI threaded adapter. This part converts the camera side to a receiver for any of our\n\t\t\t\u003ca href=\"https:\/\/optecinc.us\/collections\/optec-dsi-3-5-adapters\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"color: rgb(35, 35, 192);\"\u003e\n\t\t\t\tOptec-DSI 3.5 High Performance\u003c\/a\u003e\n\t\t\tspacers configurable to 1\/4\" increments when additional back-focus spacing is needed.\u003c\/p\u003e\n\t\t\u003cp\u003eCurrently designed telescope adapters include support for the\n\t\t\t\u003ca href=\"http:\/\/www.agoptical.com\/\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"color: rgb(35, 35, 192);\"\u003e\n\t\t\t\tAG Optical\u003c\/a\u003e\n\t\t\tiDK's,\n\t\t\t\u003ca href=\"http:\/\/www.celestron.com\/\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"color: rgb(35, 35, 192);\"\u003e\n\t\t\t\tCelestron\u003c\/a\u003e\n\t\t\t,\n\t\t\t\u003ca href=\"http:\/\/www.ceravolo.com\/\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"color: rgb(35, 35, 192);\"\u003e\n\t\t\t\tCeravolo Optical Systems\u003c\/a\u003e\n\t\t\tAstrographs,\n\t\t\t\u003ca href=\"http:\/\/www.meade.com\/\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"color: rgb(35, 35, 192);\"\u003e\n\t\t\t\tMeade\u003c\/a\u003e\n\t\t\t16-inch class SCT,\n\t\t\t\u003ca href=\"http:\/\/planewave.com\/\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"color: rgb(35, 35, 192);\"\u003e\n\t\t\t\tPlane Wave\u003c\/a\u003e\n\t\t\tSecure-Fit, and\n\t\t\t\u003ca href=\"http:\/\/www.takahashiamerica.com\/\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"color: rgb(35, 35, 192);\"\u003e\n\t\t\t\tTakahashi\u003c\/a\u003e\n\t\t\ttelescopes.\u003c\/p\u003e\n\t\t\u003cp\u003eAdditional adapters available through\n\t\t\t\u003ca href=\"http:\/\/preciseparts.com\/ppmain\/index.html\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"color: rgb(35, 35, 192);\"\u003e\n\t\t\t\tPreciseParts\u003c\/a\u003e\n\t\t\t.\u003c\/p\u003e\n\t\u003c\/div\u003e\n\t\u003cdiv id=\"tab-content-3\" class=\"tabcontent\"\u003e\n\t\t\u003ch3\u003eSpecifications for Gemini and Controller:\u003c\/h3\u003e\n\t\t\u003ch5\u003eFocusing Rotator Physical Specifications:\u003c\/h5\u003e\n\t\t\u003cul\u003e\n\t\t\t\u003cli\u003eClear Aperture: 3.75\" (95mm)\u003c\/li\u003e\n\t\t\t\u003cli\u003eBack-Focus Usage: 2.2\" to 2.7\" (55.9 to 68.6mm)\u003c\/li\u003e\n\t\t\t\u003cli\u003eFocuser Travel: 0.5\" (12.7mm)\u003c\/li\u003e\n\t\t\t\u003cli\u003eFocuser Resolution: 0.11 microns per step\u003c\/li\u003e\n\t\t\t\u003cli\u003eRotator Resolution: 600 steps per degree\u003c\/li\u003e\n\t\t\t\u003cli\u003eMinimum Overall Thickness: 2.2\" (55.9mm) [Full IN position]\u003c\/li\u003e\n\t\t\t\u003cli\u003eDimensions: 9.4\" x 7.4\" (239mm x 187mm)\u003c\/li\u003e\n\t\t\t\u003cli\u003eWeight: 6 lb. 6 oz. (2.9 kg)\u003c\/li\u003e\n\t\t\u003c\/ul\u003e\n\t\t\u003ch5\u003e\n\t\t\t\u003cbr\u003e\n\t\t\u003c\/h5\u003e\n\t\t\u003ch5\u003eGemini2 Integrated Port Connections:\u003c\/h5\u003e\n\t\t\u003cul\u003e\n\t\t\t\u003cli\u003eCommunications: USB-C socket standard,\u003c\/li\u003e\n\t\t\t\u003cli\u003eNetwork: Standard RJ45 Ethernet socket,\u003c\/li\u003e\n\t\t\t\u003cli\u003eHand Controller: RJ22 socket for optional hand control,\u003c\/li\u003e\n\t\t\t\u003cli\u003eTemperature: 3.5mm phono type socket,\u003c\/li\u003e\n\t\t\t\u003cli\u003ePower: 12VDC input, 2.1 x 5.5mm plug, center pin positive,\u003c\/li\u003e\n\t\t\u003c\/ul\u003e\n\t\u003c\/div\u003e\n\t\u003cdiv id=\"tab-content-4\" class=\"tabcontent\"\u003e\n\t\t\u003cul\u003e\n\t\t\t\u003cli\u003e\n\t\t\t\t\u003ca href=\"https:\/\/optecinc.us\/products\/19754\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e19754\n\t\t\t\t\u003c\/a\u003e- Hand Control option,\u003c\/li\u003e\n\t\t\t\u003cli\u003e\n\t\t\t\t\u003ca href=\"https:\/\/optecinc.us\/collections\/optec-4300\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOPTEC-4300 telescope adapters,\u003c\/a\u003e\n\t\t\t\u003c\/li\u003e\n\t\t\t\u003cli\u003e\n\t\t\t\t\u003ca href=\"https:\/\/optecinc.us\/collections\/optec-dsi-3-5-adapters\/products\/19890\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOptec-DSI 3.5\" spacers\u003c\/a\u003e,\u003c\/li\u003e\n\t\t\t\u003cli\u003e\n\t\t\t\t\u003ca href=\"https:\/\/optecinc.us\/collections\/optec-dsi-3-5-adapters\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOptec-DSI 3.5\" camera adapters,\u003c\/a\u003e\n\t\t\t\u003c\/li\u003e\n\t\t\u003c\/ul\u003e\n\t\t\u003cp\u003e\n\t\t\t\u003cbr\u003e\n\t\t\u003c\/p\u003e\n\t\u003c\/div\u003e\n\t\u003cdiv id=\"tab-content-5\" class=\"tabcontent\"\u003e\n\t\t\u003cul\u003e\n\t\t\t\u003cli\u003e#19760 Gemini 96 Second Generation Focusing Rotator\u003c\/li\u003e\n\t\t\t\u003cli\u003eUSB-C communications cable, 6-ft. length,\u003c\/li\u003e\n\t\t\t\u003cli\u003eCAT-5e\/CAT-6 Ethernet cable, 6-ft. length\u003c\/li\u003e\n\t\t\t\u003cli\u003e12VDC 1.25A power supply - 110-240VAC input\u003c\/li\u003e\n\t\t\t\u003cli\u003eUL\/CSA compliant wall plug cord\u003c\/li\u003e\n\t\t\t\u003cli\u003e3.5mm temperature sensor,\u003c\/li\u003e\n\t\t\t\u003cli\u003e#\u003ca href=\"https:\/\/optecinc.us\/products\/19830\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e19830\n\t\t\t\t\u003c\/a\u003eOPTEC-4300 to DSI adapter.\u003c\/li\u003e\n\t\t\u003c\/ul\u003e\n\t\t\u003ch4\u003e\n\t\t\t\u003cbr\u003e\n\t\t\u003c\/h4\u003e\n\t\u003c\/div\u003e\n\t\u003cdiv id=\"tab-content-7\" class=\"tabcontent\"\u003e\n\t\t\u003cp\u003e\n\t\t\t\u003ca href=\"https:\/\/optecinc.com\/downloads\/rotators\/gemini\/\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"color: rgb(35, 35, 192);\"\u003e\n\t\t\t\tGemini Downloads page\u003c\/a\u003e\n\t\t\u003c\/p\u003e\n\t\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Optec, Inc.","offers":[{"title":"Default Title","offer_id":68248194384021,"sku":"19760","price":3495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0151\/6981\/4628\/files\/19760-102.jpg?v=1794497958","url":"https:\/\/optecinc.us\/products\/19760","provider":"Optec, Inc.","version":"1.0","type":"link"}