TPO 2" Coma Corrector

  • For f/4 or Slower Newtonian Telescopes
  • For Cameras w/ M48x0.75 male Threads
  • Back Focus: 70mm
  • Size: 2 inch
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  • Regular price $115.95

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TPO 2" Coma Corrector

Place this TPO 2 inch Coma Corrector completely inside a 2 inch focuser for a high grade of correction with a low degree of vignetting. Connects f/4 or slower Newtonian telescopes with a 2 inch barrel and 2 inch female filter threads to cameras with M48x0.75 male threads, providing better field illumination and sharpness than with a T2 corrector. Features an ample back focus of 70mm, allowing for the use of off-axis guiders. Includes M48 to T2 adapter.


TPO Product Number: CC2


Back Focus Distance70mm
Barrel Size2"
Free ShippingYes
Warranty2 Year Warranty
Customer Reviews
3.0 Based on 1 Reviews
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Joshua M.
United States United States
Great at what it does.

This little guy is great at doing what it is designed to do, and that is to eliminate coma in your fast newtonian. 3 issues I noted that keep me from giving this a 5 star rating. 1: there was dust on the inside surfaces of the lens elements in the unit I received. But it was very easy to disassemble and clean, just be slow about it and remember the correct order and orientation to reinstall the lenses! 2: Achieving the correct spacing is absolutely critical! This thing requires 70-75mm of distance from the top lens element to the focal plain of your eyepiece or imaging sensor. The eyepice holder that comes with it is completely inadequate for reaching that amount of back focus. 3: There is no manual or instructions that come with this thing so it took some google searching to learn how to correctly set this up.