Astrozap Focusing cap - Bahtinov focusing mask - Celestron 5" SCT or Astro-Tech AT115EDT

Availability: More on the way

This Astrozap Bahtinov mask focusing cap fits Celestron 5" SCT or Meade ETX125 Maksutov-Cassegrains, the Astro-Tech AT115EDT apo refractor, or any scope with an optical tube outer diameter between 136mm and 146mm . . .