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(Black Oxide) and C11metSS(Stainless):
- 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.

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Bob's Knobs Celestron SCT 11” f/10 metric (stainless steel)

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