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 solid and truss-tube models.
• Part Information - Part: AT12RC:
  • Telescope Fit: Perfectly tailored for the secondary of 12" f/8 RCT telescopes across multiple brands.
  • Knob Design: Manufactured from black plastic, each knob measures 16 mm (5/8”) in diameter for ease of use and precise control.
  • Thread Durability: Constructed with stainless steel threads for reliable performance and longevity.
• Convenient Features:
  • Dust Cover Compatibility: Specifically designed to allow the factory dust cover to fit normally even with Bob’s Knobs installed.
• User-Friendly Installation: Designed for easy installation, offering a hassle-free solution for secondary mirror adjustments.
• Enhanced Telescope Functionality: Ideal for astronomers who seek to fine-tune their telescope’s performance with simple yet effective accessories.