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


Carbon 12.5 inch f/9 Ritchey-Chretien

Shown here on a Mountain Instruments MI-250 German Equatorial Mount (not included).

 

12.5 inch (0.317 meter) RC Specifications
  • 12.5 inch F/9 Ritchey-Chrétien certified to 1/25 wave RMS or better. Fringe analysis and supporting interferometric data supplied with each optical set.
  • Near Zero Expansion Fused Quartz Substrate (CTE of 5 x 10-7) for both primary and secondary.
  • Enhanced Aluminum (SiO2/TiO2) overcoat - 96.9% reflectivity.
  • Low Expansion, light weight Carbon Fiber Tube 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.
  • Secondary light baffle.
  • 100% CNC Machined 6061 Aluminum Mounting Rings.
  • 100% CNC Machined 6061 Aluminum Secondary Support Ring.
  • 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.
  • Fixed Instruments (rear cell) Adapter Set (FIA).
  • Built in carbon dew shield.
  • Tube end ring (aluminum).
  • CNC machined dust cap.
 Base Price $19,030
Delivery Status 45-60 Days Upon Receipt of Optics
Focal Length 2857mm
Overall Length/Diameter 41"/15.3"
Total Weight* 48 pounds
System 12.5" f/9
Primary Focal Length 40"
Back Focus 12"
Secondary Amplification 2.85X
Radius of Field Curvature 14.65 inches
Secondary Size 4.80"
Primary Hole 3.50"

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

Recommended Options:
RCOS Precision Instrument Rotator (PIR). Controlled by the Telescope Command Center.
$2,450
RCOS Telescope Command Center (TCC) 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.
$1,850

Mini Borg 45 ED f/6.6 Refractor for Finder Scope (Mini45).
Call
Mini Borg 50 Ach f/5 Refractor for Finder Scope (Mini50).
Call
Borg 77mm ED Refractor for Piggy back Guide Scope, Finder Scope, or Wide Field Imager (77ED).
Call
Borg 100mm ED Refractor F4/F6.4 PH for Piggy back Guide Scope, or Wide Field Imager (100ED).
Call
FSQ-106 by Takahashi (FSQ-106).
Call
Set of Side Mounted Dovetail Plates for accessories such as power supplies, cameras, finders, etc. (2 per set).
Call
RCOS Custom Shipping Crate (Crate 12.5)
$425
Custom airline style carry case (Thermodyne International). Does not include shipping charges from Thermodyne.
$890

 

Contact Us | Policies and Warranties | Site Map | Customer Area

RC Optical Systems, Inc. An Arizona Corporation
1650 South Plaza Way, Suite 101, Flagstaff, AZ 86001, 928-526-5380
Monday through Thursday, 7am - 5pm, Friday 7am - 12 noon

Web Design Copyright © 1999-2008 - RC Optical Systems - All Rights Reserved