Bob's Knobs Celestron SCT 11” f/10 metric (black oxide)

Bob's Knobs for C11 f/10 with Flat Secondary Housing:

Precision Collimation Made Simple

• Specialized for Celestron C11 f/10 Telescopes: Crafted for Celestron 11” (28 cm) f/10 SCTs with flat secondary housing and metric collimation screw threads, commonly found in most CPC 1100 models.
• Part Options - Part: C11metBO and C11metSS:
  • Telescope Compatibility: Perfectly fits specific Celestron 11" f/10 models, excluding those with Starizona Hyperstar secondary.
  • Knob Variants: Available in black oxide steel (black) or stainless steel (silver), each knob is 12 mm (1/2”) in diameter for easy adjustments.
  • Thread Material: Choose between black oxide or stainless steel threads for matching your telescope's requirements.
• Selection Guide:
  • Identifying Screw Threads: Check whether your telescope has metric or standard thread screws; our hints will assist in identifying the correct type.
• Environmental Considerations:
  • Black Oxide Steel: Ideal for dry environments; periodic oiling recommended for anti-corrosion. Shown in the photo.
  • Stainless Steel: Offers enhanced corrosion protection, suitable for coastal, high humidity areas, or where dew is common.
• Compatibility and Maintenance:
  • Dust Cover Fit: Ensures the factory dust cover will fit as usual with Bob's Knobs installed.
  • Factory Plastic Cap: If present, this cap should be removed when installing Bob's Knobs. It's cosmetic and does not affect the telescope's operation.
• User-Friendly Installation: Ideal for Celestron C11 f/10 telescope owners looking for a straightforward, tool-free solution for accurate collimation adjustments.