VRC-8
Aperture:  203mm (8")
Focal Length:  1625mm
Focal Ratio:  f/8
Central Obstruction:  95mm (22% of area)
Outside Diameter:  229mm
Overall Length w/Focuser:  560mm
Tube Weight w/ Focuser:  7.45 kg
Focuser:  2" Crayford style 2-speed
Mounting: Losmandy Bottom Plate, Vixen style Top Dovetail

Metal Tube $1079.99 USD,
Sold Out!! More on the Way Soon

Carbon Fiber Tube $1499.99 USD
Sold Out

AS OF JANUARY 8, 2020, due to high cost and price increase, MallinCam will no longer carry the VRC line of Ritchey-Chretien optical tube assembly.



What is the difference between our optical tubes and all others from various vendors? Each and every MallinCam VRC line optical tubes are shipped via Air Freight to our warehouse from the manufacturer to avoid sea salt contamination that can shorten the life of your optical tube reflective coatings. Other vendors  use sea  containers to ship their optical tubes from the manufacturer which exposure optical elements to sea salt for months of traveling by boat.  We also check collimation on every optical tube prior to ship them to clients ensuring top quality. That's the MallinCam difference.

The 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! This scope comes complete with a bottom Losmandy mounting dovetail and Vixen style top dovetail for attaching to your mount.

In stock Now! SHIPPING in the continental US and Canada Only.

Click images below to enlarge.
Specifications:

  • Aperture .................................................... 203mm (8”)
  • Focal Length ..................................................1625mm
  • Focal Ratio ............................................................... f/8
  • Optical Type .............................. dual hyperbolic mirror true Ritchey-Chrétien reflector
  • Mirrors .......................... low thermal expansion quartz, 99% reflectivity dielectric multicoatings
  • Secondary Mirror Holder Obstruction .............95mm (47% by diameter, 22% by area)
  • Field Stops .................... ten internal knife-edge baffles
  • Tube Diameter............................... 9.02” (229mm) o. d.
  • Tube Length (without focuser) ................ 18.5” (470mm)
  • Tube Length (with focuser) ....................... 22” (560mm)
  • Tube Weight (without focuser) ........... 14.8 lbs. (6.73 kg)
  • Tube Weight (with focuser) ................ 16.4 lbs. (7.45 kg)
  • Mounting System ........ Two 15.5” Losmandy bottom and Vixen-style top dovetail,
  • Focuser ............ removable dual-speed linear Crayford with 10:1 reduction ratio fine focus
  •                             2” and 1.25” compression ring accessory holders
  •                             360° rotating camera angle/observing angle adjuster
  • Focuser Mounting Thread ......... 90mm x 1mm metric
  • Focuser Travel ....................................... 1.97” (50mm)
  • Focuser Extension Rings ....... two 25mm, one 50mm
  • Finder ........ Not Included
  • Available in Metal tube (steel) or Carbon Fiber tube.
  • Collimation Instructions Click Here