TPO 10" f/8 Ritchey-Chretien Truss Tube Telescope

TPO 10" f/8 Ritchey-Chretien Truss Tube Telescope
Item # OS-10RC-TT

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The 10" F/8 Ritchey-Chretien Truss Tube OTA from TPO is an all round excellent scope that boasts incredible versatility, maximizing every inch of it's aperture. The fixed position quartz primary mirror utterly negates image shift, and also removes the otherwise frustrating task of collimating a scopes primary mirror. Furthermore the carbon fiber truss tube design drastically reduces the threat of possible temperature shifts causing flexure, the design lending itself to minimizing thermal shifts. The Ritchey-Chretien design has virtually no coma, chromatic aberration, or spherical aberration, and is an all around improvement to the Cassegrain while attaining many of the same objectives. The TPO 10" F/8 RC then, is a superlative astrograph capable of almost any imaging task. One of it's most notable features is indeed it's extreme versatility and adaptability. The only astro-imaging task that it is not exceptionally well suited to is wide field, as it does have a notably narrow field of view. This Third Planet Optics (TPO) Ritchey Chretien telescope has 10" (254mm) of aperture and a focal length of 2032mm . The concave hyperbolic primary and convex hyperbolic secondary are made from low expansion quartz, and finished with a scratch-resistant highly reflective 99% dielectric coating for great contrast. The primary mirror is fixed in place in a metal mirror cell, and the secondary resides in a metal housing that can be collimated.
Additional Information

Additional Information

Manufacturer TPO
Telescope Series TPO Ritchey-Chretien
Optical Design Ritchey-Chretien
Mount Type None - Optical Tube Only
Warranty 2 Year Warranty
Telescope Aperture 254mm
Telescope Focal Length 2032mm
Telescope Focal Ratio f/8
Optical Tube Weight 35 lb.
Optical Coatings Fully Multi-Coated
Tube Color or Finish Carbon Fiber
Diagonal Included? No - Not Required
Focuser Size 3"
Focuser Style Crayford
Finder Included None
Manual or Electronic Focusing? Manual
Focusing Speeds Two-Speed
OTA Mount Type Losmandy-Style Dovetail

Customer Reviews 2 item(s)

This is an awesome telescope for astrophotographs. It seems to have the correct balance between focal lenght and aperture for CCDs.
I use and recommend TPO reducer 0.8x. The set has round stars from side to side in a 8300 CCD.
Ive never used the fans and focus hold all night.
An incredible scope for the price.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by PCacella / (Posted on 6/22/2015)
Great scope for the price
This scope is beautiful, great fit and finish. Scope maintains collimation and is very easy to setup with provided spacers and mammoth focuser. Really a great value for the price. You get a dust cover for the secondary, but no cover for the primary. You also do not get any documentation. It would be nice to get both.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Price / (Posted on 8/6/2014)
Included Items

Included Items

  • TPO 10" f/8 Ritchey-Chretien Truss Tube OTA
  • 3" Crayford Focuser
  • Two Losmandy D Style Dovetails
Questions & Answers

Product Questions

Is there a focal reducer available for the 10-inch Ritchey?
Who manufactures this telescope? 
Are your scopes the V2 version with the focuser split from the mirror cell?
Will this scope fully Illuminate a PL09000?
Could you please provide the physical dimensions of the OTA in terms of length, width and height. Thank you>
What is the spec on the mirrors on the TPO RC truss (for example 1/10 wave)?
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