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Bob's Knobs for Celestron C9.25 f/10 Secondary with Trifid Fastar Housing # C9.25fst

5.0 (3 Reviews) Read Reviews Write Review
Brand Bob's Knobs
Part Number C9.25fst
Availability available

Product Info

Manufacturer Description

Collimate your Catadioptric or Newtonian reflector style telescopes without tools!

It's easy...just grab a Bob's Knob collimation thumbscrew and turn. You can even do it while looking through the eyepiece on most scopes. These thumbscrews are also much easier to use with gloves on. And perhaps most importantly, you'll never drop that pesky little Allen wrench or screwdriver into the grass again. Installation is a snap with the included instructions, and you can undo the modification at any time.

Part: C9.25fst
Fits: Celestron 9.25" (23.5 cm) f/10 SCT versions with "Trifid" Fastar secondary housing

Knobs: Black plastic, 9.5 mm (3/8") diameter
Threads: Stainless steel

Notes:
1. These knobs fit the Celestron 9.25" f/10 SCT with a Fastar secondary, which has black Phillips factory collimation screws that are recessed into the secondary housing. These versions may or may not have EdgeHD optics.
2. Knobs include a set of long spacers so they clear the rotary cover.
3. The factory dust cover will fit normally with Bob's Knobs installed.
4. 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.

Reviews

5.0 (Based on 3 Reviews) 100% of reviewers recommended this product.
Rating Distribution
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    1. Guest

      Skill Level
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      Time with Product
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      User Notes:
      Review by Raymond A.
      1483021575
      Dec 29, 2016

      5.0 Bob's knobs

      Pros:

      Cons:

      Comments:

      Does what it is advertised to do but just remember you're going to fight recollimation.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    2. Guest

      Skill Level
      Unknown
      Time with Product
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      User Notes:
      Review by Craig of Santa Maria, CA.
      1475193600
      Sep 29, 2016

      5.0 Bob's Knobs

      Pros:

      Lightweight,Easy to Use,Accurate

      Cons:

      Comments:

      Bob's Knobs make very easy to collimate any SCT Telescope.
      I recommend them to every SCT Telescope owner.
      Craig

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    3. Guest

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by NITEGUY of Alliance, Ohio.
      1436227200
      Jul 6, 2015

      5.0 A MUST FOR ANY SCT OWNER

      Pros:

      Easy to Use,Strong Construction

      Cons:

      Comments:

      This product is a must for an SCT owner. Very easy to use and by far easier to use than a screwdriver.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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      Specifications

      Manufacturer Bob's Knobs
      Additional Information bobs-knobs-c11stdfst
      Prism Type No
      Eyepiece Focal Length Ships by Next Business Day