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Duncan Mask Celestron C5Duncan Mask Celestron C8 (non-Fastar, pre-1998)Duncan Mask Celestron C9.25 (non-Fastar, pre-1998)Duncan Mask Celestron "Classic 8"Duncan Mask Celestron C11 (non-Fastar, pre-1998)Duncan Mask Celestrong C14 (non-Fastar)Duncan Mask Celestron C6Duncan Mask Celestron C8 (including Ultima 2000)Duncan Mask Celestron C9.25Duncan Mask Celestron C11Duncan Mask Celestron C14
Buckeye Stargazer Duncan Masks - Celestron
$23.00 – $45.00
Buckeye Stargazer Duncan Mask for SCT Collimation Effortless SCT Collimation: Quick Setup: The Duncan Mask enables fast and precise collimation of your Schmidt-Cassegrain Telescope (SCT), essential for achieving sharp, clear...
Celestron C5Celestron C8 (non-Fastar pre-1988)Celestron C9.25 (non-Fastar pre-1988)Celestron "Classic 8"Celestron C11 (non-Fastar pre-1988)Celestron C14 (non-Fastar)Celestron DX130AZCelestron RASA 8Celestron RASA 11Celestron Comet Catcher (black tube)Celestron C6Celestron C8 (including Ultima 2000)Celestron C9.25Celestron C11Celestron C14
Buckeye Stargazer Tri-Bahtinov Masks - Celestron
$23.00 – $45.00
Buckeye Stargazer Celestron Tri-Bahtinov Masks Advanced Focusing and Collimation Tool: Enhanced Precision: Utilizes the principles of the Bahtinov mask, combined with enhancements for collimating telescopes with adjustable optics, ensuring...