Celestron C11 f/10 Fastar with Standard Threads

Celestron C11 f/10 Fastar with Standard Threads

Fits Celestron C11 with Fastar secondary housing and silver Phillips factory collimation screws.

Fits: Celestron 11” (28 cm) f/10 SCT versions (metal or carbon fiber tube) with standard thread factory collimation screws and "Trifid" rotary cover Fastar secondary housing. Factory collimation screws are silver Phillips. These knobs will also fit the C11 with Starizona Hyperstar if the collimation screws have standard threads.

Knobs: Black plastic, 16 mm (5/8”) diameter

Threads: Black anodized aluminum alloy

Notes:

  1. These telescopes can have factory collimation screws with either standard or metric threads. Silver Phillips collimation screws are standard thread. Some black Phillips collimation screws are also standard thread.
  2. The factory dust cover will fit normally with Bob’s Knobs installed.
  3. The rotary secondary cover must remain open when the knobs are installed. The cover is cosmetic only and will not affect operation of the telescope.

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Our price: $19.95

In Stock - Ships Same Business Day Before 4 PM
 


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