Carbon Truss 12.5 inch f/9 Ritchey-Chrétien...

RCOS Carbon Truss 12.5 inch Ritchey-Chretien Telescope

Shown here on with optional Paramount ME German Equatorial Mount, 4 inch Borg Refractor and Apogee U42 Thinned, Back Illuminated CCD camera.

12.5 inch (0.32 meter) f/9 Ritchey-Chrétien Specifications
  • 12.5 inch f/9 Ritchey-Chrétien using Computerized Polished near zero Expansion ULE Type substrate certified to at least 1/25th wave RMS.
  • Supporting Fringe Analysis and interferometric data supplied with each optical set.
  • Enhanced Aluminum (SiO2/TiO2) overcoat - 96.9% reflectivity.
  • Low expansion, light weight Carbon Fiber Truss for superior performance and stability.
  • 6061 Aluminum components - All CNC Machined.
  • Precision Secondary Mirror Focuser.
  • 2-Stage Primary mirror baffle with internal knife-edge light stops.
  • Conical Secondary light baffle.
  • 6061 Aluminum Mounting Rings - CNC Machined.
  • Active Cooling.
  • RCOS "Focus and Forget" Technology.
  • Shipped fully assembled, collimated, and ready to use.
  • RCOS Custom CNC Machined "light weight" Losmandy compatible dovetail plates - top and bottom with matching Paramount VersaPlate hole pattern, allows dovetail mounting plate to be bolted to VersaPlate once scope is balanced.
  • Losmandy RDF-90 Finder Scope 3-point mounting bracket.
  • CNC machined dust cover over primary mirror.
Base Price $21,500
Delivery Status 45-60 Days Upon Receipt of Optics
Focal Length 2857mm
Overall Length/Diameter 42"/16.0"
Total Weight* 50 pounds
System 12.5" f/9
Primary Focal Length 37.5"
Back Focus 12"
Secondary Amplification 2.85X
Radius of Field Curvature 14.65"
Secondary Size 4.80"
Primary Hole 3.5"

*100% ready for imaging as equipped above including rings and dovetail plates.

RCOS Telescope Command Center (TCC-II) Controller - Thermal monitor of primary, secondary and ambient air temperature, includes and controls fans, secondary focus position, secondary dew heater operation, and operation of optional Instrument Rotator. Includes Servo DC motor to electronically operate the secondary focuser.

Price: $2,450

Telescope Command Center

RCOS 70mm Series - Precision Instrument Rotator (PIR-70mm). Controlled by the Telescope Command Center. Large 2.7 inch clear aperture.

Price: $2,450

RCOS 70mm Series - Field Flattener / Corrector. Eliminates field curvature present in all reflective telescopes while eliminating astigmatism and reducing spot size. Fits inside (non-rotating) of the 70mm PIR.

Price: $1,750

RCOS 70mm Series - Fixed Instruments Rear Cell Adapter / Spacer Set (FIA-82mm). Also large clear aperture to eliminate vignetting. Fits into 70mm PIR.

Price: $75 each

Mini Borg 45 ED, Mini Borg 50 Ach, Borg 77mm ED, Borg 101 ED, or Borg 125 ED Refractors. Can be used for Piggy Back Guide Scope, Finder Scope, or Wide Field Imager.

Price: Call

FSQ-106 the "NEW Q" by Takahashi (FSQ-106). Piggy back onto your RC! Superb Wide Field Imaging!

Price: $4,200 (OTA only)

Set of Side Mounted Dovetail Plates for accessories such as power supplies, cameras, finders, etc. (2 per set).

Price: Call

RCOS Custom Shipping Crate (Crate 12.5RC). Ship your 12.5RC secure and safe anywhere in the world with peace of mind. Custom fit and padded internally to reduce shock.

Price: $425

Custom Shipping Case from Thermodyne. Airline style with handle and wheels make it easy to pack and travel with your 12.5RC. Fits tube or truss.

Price: $975