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.