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Bob's Knobs Astro-Tech All ATIN Newtonian secondary(CNsec35)
$22.95
Bob's Knobs for Astro-Tech Newtonian Secondary: Precision and Ease Customized for Astro-Tech Series: Specifically designed knobs for the Astro-Tech Imaging Newtonian (IN) and Dobsonian (D) series secondary mirrors. Wide Range...
Bob's Knobs Astro-Tech AT12RC secondary(AT12RC)
$27.95
Bob's Knobs for Astro-Tech AT12RC Secondary: Precision Adjustment Made Simple Broad Compatibility: Designed for Astro-Tech, GSO, iOptron, MallinCam, Orion (US), and TPO 12" f/8 Ritchey-Crétien (RCT) secondary mirrors, accommodating both...
Bob's Knobs Astro-Tech AT10RC secondary(AT10RC)
$27.95
Bob's Knobs for Astro-Tech AT10RC Secondary: Enhanced Telescope Adjustability Designed for Diverse Brands: Ideal for Astro-Tech, GSO, iOptron, MallinCam, Orion (US), and TPO 10" f/8 Ritchey-Crétien (RCT) secondary mirrors, both...
Bob's Knobs Astro-Tech AT6RC secondary(AT6RC)
$27.95
Bob's Knobs for Astro-Tech AT6RC Secondary: Streamlined Telescope Adjustment Designed for Multiple Telescope Brands: Suitable for Astro-Tech, GSO, iOptron, MallinCam, Orion (US), and TPO 6" f/9 Ritchey-Crétien (RCT) secondary mirrors,...