{"product_id":"mallincam-vrc-8-ritchey-chretien-8-carbon-fiber-tube-pre-owned","title":"Mallincam VRC-8 - Ritchey Chretien 8\" Carbon Fiber Tube! (Pre-owned)","description":"\u003cp\u003e\u003cspan style=\"color: rgb(250, 5, 5);\"\u003e\u003cstrong\u003eIn Excellent Condition!\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(250, 5, 5);\"\u003e\u003cstrong\u003eSold As Is. Optical Tube Only, Mount and accessories not included.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"paragraph\"\u003e\n\u003cspan style=\"font-size: x-large;\"\u003e\u003cstrong\u003e\u003cem\u003eVRC-8\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"paragraph\"\u003e\u003cspan style=\"font-size: medium;\"\u003eAperture: \u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e203mm (8\")\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eFocal Length:  \u003cstrong\u003e1625mm\u003c\/strong\u003e\u003cbr\u003eFocal Ratio:  \u003cstrong\u003ef\/8\u003c\/strong\u003e\u003cbr\u003eCentral Obstruction:  \u003cstrong\u003e95mm (22% of area)\u003c\/strong\u003e\u003cbr\u003eOutside Diameter:  \u003cstrong\u003e229mm\u003c\/strong\u003e\u003cbr\u003eOverall Length w\/Focuser:  \u003cstrong\u003e560mm\u003c\/strong\u003e\u003cbr\u003eTube Weight w\/ Focuser:  \u003cstrong\u003e7.45 kg\u003c\/strong\u003e\u003cbr\u003eFocuser:  \u003cstrong\u003e2\" Crayford style 2-speed\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"paragraph\"\u003e\n\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"paragraph\"\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003eThe MallinCam VRC-8 optical tubes include a large deluxe 2\" Crayford style focuser with 1.25\" to 2\" adapter included. This high precision dual speed focuser makes it easy to focus and lock the focuser in place. Variable friction adjustment and additional focuser spacer rings are included to allow you to reach focus with any CCD cameras or other optical accessories like diagonals, focal reducers, or Barlows.  The VRC-8 optical tube is fully light baffled, and has Quartz primary mirror and secondary mirrors.  Secondary and primary mirrors can both be collimated. Optics are Dielectric coated with 99% reflectivity! \u003c\/span\u003e\u003cspan\u003eThis scope comes complete with a bottom Losmandy mounting dovetail and Vixen style top dovetail for attaching to your mount.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"paragraph\"\u003e\n\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"paragraph\"\u003e\n\u003cspan style=\"font-size: medium;\"\u003e\u003cspan\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eAperture .................................................... 203mm (8”)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eFocal Length ..................................................1625mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eFocal Ratio ............................................................... f\/8\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eOptical Type .............................. dual hyperbolic mirror true Ritchey-Chrétien reflector\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eMirrors .......................... low thermal expansion quartz, 99% reflectivity dielectric multicoatings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eSecondary Mirror Holder Obstruction .............95mm (47% by diameter, 22% by area)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eField Stops .................... ten internal knife-edge baffles\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eTube Diameter............................... 9.02” (229mm) o. d.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eTube Length (without focuser) ................ 18.5” (470mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: medium;\"\u003eTube Length (with focuser) ....................... 22” (560mm)\u003c\/span\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eMounting System ........ Two 15.5” Losmandy bottom and Vixen-style top dovetail,\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eFocuser ............ removable dual-speed linear Crayford with 10:1 reduction ratio fine focus\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003e                            2” and 1.25” compression ring accessory holders\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003e                            360° rotating camera angle\/observing angle adjuster\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eFocuser Mounting Thread ......... 90mm x 1mm metric\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eFocuser Travel ....................................... 1.97” (50mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003eFocuser Extension Rings ....... two 25mm, one 50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: medium;\"\u003eFinder ........ Not Included\u003c\/span\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Mallin Cam","offers":[{"title":"Default Title","offer_id":43685630967921,"sku":"USED072203","price":1395.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/20260722_132607.jpg?v=1784744858","url":"https:\/\/khanscope.com\/products\/mallincam-vrc-8-ritchey-chretien-8-carbon-fiber-tube-pre-owned","provider":"Khan Scope Centre","version":"1.0","type":"link"}