{"product_id":"rainbow-astro-rsf-focuser","title":"Rainbow Astro RSF Focuser","description":"\u003ch2 data-mce-fragment=\"1\"\u003eRainbow Astro RSF Focuser\u003c\/h2\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-bg-url=\"\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003ch4 data-fontsize=\"16\" data-lineheight=\"30\" data-mce-fragment=\"1\"\u003eIf you are disappointed with your RC telescope focuser, upgrade to the RSF secondary mirror moving motor focuser. You can be freed from image shift.\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-bg-url=\"\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-animationoffset=\"100%\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-animationtype=\"slideInLeft\" data-animationduration=\"0.3\" data-animationoffset=\"100%\" data-empty-column=\"true\" data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003eSecondary Mirror Moving Motor Focuser\u003c\/li\u003e\n\u003cli\u003efor RC 8″, 10″, 12″ OTA\u003c\/li\u003e\n\u003cli\u003eHand Controller Included\u003c\/li\u003e\n\u003cli\u003esupport ASCOM Driver\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eDIY Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eIt is DIY kit to attach focuser to telescope by user. It can be easily mounted without damaging the telescope.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-animationtype=\"slideInLeft\" data-animationduration=\"0.3\" data-animationoffset=\"100%\" data-empty-column=\"true\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eSecondary mirror moving\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eA secondary mirror moving motor focuser, mainly used for large reflecting telescopes. Therefore, attaching a heavy camera to the telescope does not affect the performance of the focuser and telescope.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-animationtype=\"slideInLeft\" data-animationduration=\"0.3\" data-animationoffset=\"100%\" data-empty-column=\"true\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eEasier Collimation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eShifting the focuser makes precise collimation difficult. Replace with a secondary mirror moving focuser to reduce disturbances.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-animationtype=\"slideInLeft\" data-animationduration=\"0.3\" data-animationoffset=\"100%\" data-empty-column=\"true\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eHome Sensor\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eThe home sensor is built in so that the focuser can find the mechanical origin by itself.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-animationtype=\"slideInLeft\" data-animationduration=\"0.3\" data-animationoffset=\"100%\" data-empty-column=\"true\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eHand controller included\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eHand controller included. For visual observation, it can be used more conveniently with the hand controller operation than with the PC.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-animationtype=\"slideInLeft\" data-animationduration=\"0.3\" data-animationoffset=\"100%\" data-empty-column=\"true\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eIt can be used for tube type and truss type RC telescopes of GSO, Astro-Tech and TPO.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-animationtype=\"slideInLeft\" data-animationduration=\"0.3\" data-animationoffset=\"100%\" data-empty-column=\"true\" data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp data-inline-fontsize=\"18px\" data-inline-lineheight=\"23px\" data-fontsize=\"18\" data-lineheight=\"23\" data-mce-fragment=\"1\"\u003e\u003cstrong\u003eReasonable price\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003ePurchase a secondary mirror moving focuser for a normal focuser price. Even motors and controllers are included.\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"box-sizing: border-box; max-width: 100%; background-color: #ffffff; border-collapse: collapse; border-spacing: 0px; border: 1px solid #dcdcdc; box-shadow: rgba(0, 0, 0, 0.08) 0px 1px 3px, rgba(255, 255, 255, 0.5) 0px 0px 0px 1px inset; color: #494949; font-family: Karla, Arial, Helvetica, sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" width=\"100%\"\u003e\n\u003cthead style=\"box-sizing: border-box;\"\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003cth style=\"box-sizing: border-box; font-family: Montserrat, Arial, Helvetica, sans-serif; font-weight: bold; line-height: 1.73; letter-spacing: 0px; font-style: normal; border: 1px solid #dcdcdc; background: #f6f6f6; padding: 20px; text-align: left;\" align=\"left\"\u003e\u003c\/th\u003e\n\u003cth style=\"box-sizing: border-box; font-family: Montserrat, Arial, Helvetica, sans-serif; font-weight: bold; line-height: 1.73; letter-spacing: 0px; font-style: normal; border: 1px solid #dcdcdc; background: #f6f6f6; padding: 20px; text-align: center;\" align=\"left\"\u003eSpec\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody style=\"box-sizing: border-box;\"\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px; text-align: center;\" align=\"left\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px;\" align=\"left\"\u003eSecondary mirror moving motor focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box; background: #f6f6f6;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px; text-align: center;\" align=\"left\"\u003eMotor\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px;\" align=\"left\"\u003eStepper motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px; text-align: center;\" align=\"left\"\u003eFocusing travel\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px;\" align=\"left\"\u003e±8mm (at focal plane ±48mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box; background: #f6f6f6;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px; text-align: center;\" align=\"left\"\u003eMinimum step\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px;\" align=\"left\"\u003e0.01mm (at focal plane 0.06mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px; text-align: center;\" align=\"left\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px;\" align=\"left\"\u003e560g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box; background: #f6f6f6;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px; text-align: center;\" align=\"left\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px;\" align=\"left\"\u003eAluminum AL6061\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px; text-align: center;\" align=\"left\"\u003eCoating\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px;\" align=\"left\"\u003eAnodizing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box; background: #f6f6f6;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px; text-align: center;\" align=\"left\"\u003eInput power\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px;\" align=\"left\"\u003eDC 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px; text-align: center;\" align=\"left\"\u003eControl\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px;\" align=\"left\"\u003eHand controller, Stand-alone PC Program, ASCOM Driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box; background: #f6f6f6;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px; text-align: center;\" align=\"left\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border: 1px solid #dcdcdc; padding: 10px 20px;\" align=\"left\"\u003eTube of truss type RC telescope (GSO, Astro-Tech, TPO, Teleskop Service)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eFocuser body\u003cbr\u003eSpider vane\u003cbr\u003eBolts for spider vane(M3)\u003cbr\u003eFlocking material\u003cbr\u003eStickers\u003cbr\u003eCable mount\u003cbr\u003ePower cable\u003cbr\u003eUSB cable\u003cbr\u003eDouble sided adhesive tape\u003cbr\u003eController connector\u003cbr\u003eHand controller\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cbr\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eRainbow Astro 5-Years Warranty\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Rainbow","offers":[{"title":"RSF-8 (Motor focuser for 8inch RC)","offer_id":44202158948581,"sku":"RA-ACCRF0800","price":1162.0,"currency_code":"CAD","in_stock":true},{"title":"RSF-10 (Motor focuser for 10inch RC)","offer_id":44202158981349,"sku":"RA-ACCRF1000","price":1162.0,"currency_code":"CAD","in_stock":true},{"title":"RSF-12 (Motor focuser for 12inch RC)","offer_id":44202159014117,"sku":"RA-ACCRF1200","price":1162.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/rainbow-astro-rsf-focuser-astronomy-plus-1.webp?v=1715808831","url":"https:\/\/istronomyplus.com\/products\/rainbow-astro-rsf-focuser","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}