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Focusing Aids

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

$88.00

3 Review(s)

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 . . .
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Astrozap Focusing cap - built-in Bahtinov focusing mask for Celestron 4" or Meade ETX105 Maks

$78.00

This Astrozap Bahtinov mask focusing cap fits Celestron 4" or Meade ETX105 Maksutov-Cassegrains, or any scope with an optical tube outer diameter between 110mm and 120mm . . .
$Focusing cap with built-in Bahtinov focusing mask for 80mm refractors and similar scopes$ $Astrozap Focusing cap with built-in Bahtinov focusing mask for 80mm refractors and similar scopes$

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Astrozap Focusing cap with built-in Bahtinov focusing mask for 80mm refractors and similar scopes

$77.00

3 Review(s)

This Astrozap Bahtinov mask focusing cap fits most 80mm refractors, such as the Astro-Tech AT80EDT, or any scope with an optical tube outer diameter between 101mm and 110mm . . .