{"product_id":"optec-gemini-focusing-rotator-19750","title":"Optec Gemini Focusing Rotator (19750)","description":"\u003ch2\u003eOptec Gemini Focusing Rotator\u003c\/h2\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eOptec Gemini Focusing Rotator New Design Concept:\u003c\/h4\u003e\n\u003cp class=\"text-left\"\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, \u003cstrong\u003eGemini\u003c\/strong\u003e 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, \u003cstrong\u003eGemini\u003c\/strong\u003e can easily handle 10-kg. (22-lbs.) payload packages without flexure.  Full 360-degree rotation is a built-in function of the \u003cstrong\u003eGemini\u003c\/strong\u003e with a full 1\/2\" of linear travel.  At the midpoint, \u003cstrong\u003eGemini\u003c\/strong\u003e measures a mere 2.45\" or about 62.2mm in thickness.\u003c\/p\u003e\n\u003ch4\u003eTemperature Compensation:\u003c\/h4\u003e\n\u003cp class=\"text-left\"\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 \u003cstrong\u003eGemini Commander \u003c\/strong\u003esoftware provides a convenient wizard to help determine your telescope's TC or temperature coefficient. Robust Compact Design:\u003c\/p\u003e\n\u003cp class=\"text-left\"\u003e \u003c\/p\u003e\n\u003cp class=\"text-left\"\u003eTo 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 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.  Dual RJ45 connectors provide connection to the Gemini Control hub.  The independent rotating drawtube is supported by a custom X-cage bearing system supported by large, 6mm chrome ball bearings.\u003c\/p\u003e\n\u003cp class=\"text-left\"\u003eSupport for Multiple Telescopes:\u003c\/p\u003e\n\u003cp\u003eFeaturing identical OPTEC-4300 mechanical interfaces front and back, the \u003cstrong\u003eGemini\u003c\/strong\u003e 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.  \u003cstrong\u003eGemini's\u003c\/strong\u003e 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.\u003c\/p\u003e\n\u003ch4\u003eMultiple Ways to Connect:\u003c\/h4\u003e\n\u003cp class=\"text-left\"\u003eThe Gemini Control hub acts as the central controller to link both focuser and rotator to any control PC. The hub includes communication ports for Serial and USB (using Optec's USB\/Serial cable) and wired Ethernet Network protocols as standard. An optional WiFi board and antenna can be added and installed at any time.  Focuser and Rotator ports are available at the top of the Gemini hub with 12VDC Power, Network, optional Hand Control, and Serial connection ports available at the bottom.\u003c\/p\u003e\n\u003ch4\u003eComplete Package includes Hand Controller:\u003c\/h4\u003e\n\u003cp class=\"text-left\"\u003eEach Gemini package comes complete with everything needed to connect.  The Gemini package includes our updated Gemini Hand Controller which allows jiggle-free manual control while at the telescope. Now featuring a rotary encoder and integrated thumb knob, exact focus adjustments can be made without touching the telescope or focuser.\u003c\/p\u003e\n\u003cp class=\"text-left\"\u003e Our precision external temperature probe, power supply, and ultra-flat Ethernet cables round out a complete integrated package.\u003c\/p\u003e\n\u003ch4 class=\"auto-style1\"\u003eComing Soon - 802.11 WiFi Option:\u003c\/h4\u003e\n\u003cp class=\"text-left\"\u003eUsing the ASCOM Local Server model, Optec's \u003cstrong\u003eGemini Commander \u003c\/strong\u003esoftware allows multiple clients to connect simultaneously to the Gemini hub.  Soon to be released embedded webservers in the wired Ethernet and WiFi connections enable Gemini to generate a control interface accessible through any web browser or smartphone. Free Android and iPhone applications search the local network and load the interactive webpages.  Because these pages are generated by the hub itself, once you are connected, there is no further configuration required: just connect to Gemini and enjoy remote wireless focus control with the optional 802.11 WiFi add-on.\u003c\/p\u003e\n\u003ch2\u003eGemini Commander Software\u003c\/h2\u003e\n\u003cdiv\u003eVisit the \u003ca href=\"https:\/\/www.optecinc.com\/astronomy\/downloads\/gemini.htm\" data-mce-href=\"https:\/\/www.optecinc.com\/astronomy\/downloads\/gemini.htm\"\u003eGemini Software Downloads Page\u003c\/a\u003efor the latest updates and ASCOM driver,\u003cstrong\u003eGemini  Commander\u003c\/strong\u003e control software and additional resources. \u003cstrong\u003eGemini Commander\u003c\/strong\u003e creates an ASCOM Local Server or hub to allow multiple clients access for communication and control of the attached focusers.  By using the local server model, Gemini offers an easily configurable user experience for all Windows ASCOM programs.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOptec Gemini can easily handle 10-kg. (22-lbs.) payload packages without flexure.\u003c\/li\u003e\n\u003cli\u003eFull 360-degree rotation is a built-in function of the Gemini with a full 1\/2″ of linear travel.\u003c\/li\u003e\n\u003cli\u003eAt the center of travel, Gemini measures a mere 2.45″ in thickness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003cbr\u003e\n\u003c\/h3\u003e\n\u003ch4\u003eFocusing Rotator Physical Specifications:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eClear Aperture:    3.75″ (95mm)\u003c\/li\u003e\n\u003cli\u003eBack-Focus Usage:    2.2″ to 2.7″ (55.9 to 68.6mm)\u003c\/li\u003e\n\u003cli\u003eFocuser Travel:    0.5″ (12.7mm)\u003c\/li\u003e\n\u003cli\u003eFocuser Resolution:    0.11 microns per step\u003c\/li\u003e\n\u003cli\u003eRotator Resolution:    600 steps per degree\u003c\/li\u003e\n\u003cli\u003eMinimum Overall Thickness:    2.2″ (55.9mm) [Full IN position]\u003c\/li\u003e\n\u003cli\u003eDimensions:   9.4″ x 7.4″ (239mm x 187mm)\u003c\/li\u003e\n\u003cli\u003eWeight:    6 lb. 6 oz. (2.9 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGemini Controller Hub Specifications:\u003c\/h4\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eController Hub Specifications:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul class=\"text-left\"\u003e\n\u003cli\u003eLength:  5.1″ (130mm)\u003c\/li\u003e\n\u003cli\u003eWidth:  3.2″ (81mm)\u003c\/li\u003e\n\u003cli\u003eHeight: 1.0″ (27mm)\u003c\/li\u003e\n\u003cli\u003eWeight: 10 oz. (285 g)\u003c\/li\u003e\n\u003cli\u003eMounting Holes:   Four 4-40 x 1\/8″ depth (reverse side)\u003c\/li\u003e\n\u003cli\u003eCase Material:  6061 aluminum, anodized black.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eGemini Hub Port Connections:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFocuser:    RJ45 socket for standard Cat-5e\/Cat-6 cable to Focuser port,\u003c\/li\u003e\n\u003cli\u003eRotator:    RJ45 socket for standard Cat-5e\/Cat-6 cable to Rotator port,\u003c\/li\u003e\n\u003cli\u003ePower:    12VDC input, 2.5 x 5.5mm plug, center pin positive,\u003c\/li\u003e\n\u003cli\u003eNetwork:    Standard RJ45 Ethernet socket,\u003c\/li\u003e\n\u003cli\u003eHand Controller:    RJ22 socket for standard telephone handset cord,\u003c\/li\u003e\n\u003cli\u003eSerial:    RJ12 socket for Optec USB\/Serial cable (included),\u003c\/li\u003e\n\u003cli\u003eWireless:   802.11 WiFi option (coming soon).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003eOptec Gemini Focusing Rotator\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGemini Controller Hub\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGemini Hand Controller\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePower Supply\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCables\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePelican type case\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cspan\u003eOptec 1-Year Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Gemini-Software-Quick-Start-Guide.pdf?v=1668710292\" target=\"_blank\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Gemini-Software-Quick-Start-Guide.pdf?v=1668710292\"\u003eGemini Software Quick Start Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Gemini-Hand-Control-Quick-Start-Guide.pdf?v=1668710294\" target=\"_blank\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Gemini-Hand-Control-Quick-Start-Guide.pdf?v=1668710294\"\u003eGemini Hand Controller Quick Start Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Optec","offers":[{"title":"Default Title","offer_id":43125657174245,"sku":"OPC-19750","price":5033.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/optec-gemini-focusing-rotator-19750-astronomy-plus-1.webp?v=1690483372","url":"https:\/\/istronomyplus.com\/products\/optec-gemini-focusing-rotator-19750","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}