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Bob's Knobs

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  • 3 Collimating knobs for metric Celestron 9.25" CPC 925 SCTs
    $20.95 - $20.95
    $20.95
    $20.95 - $20.95
    $20.95

    Bob’s Knobs 3 Collimating Knobs for Metric Celestron 9.25" CPC 925 SCTs

    Bob's Knobs
    In Stock

    These knobs make it easy to collimate your Celestron C9¼ CPC 925 for optimum image quality. You don't need any tools, so you never have to worry ab...

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    $20.95 - $20.95
    $20.95
    $20.95 - $20.95
    $20.95
  • 3 Collimating knobs for Celestron 11" SCT with flat secondary housing
    $19.95 - $19.95
    $19.95
    $19.95 - $19.95
    $19.95

    Bob’s Knobs 3 Collimating Knobs for Celestron 11" SCT with Flat Secondary Housing

    Bob's Knobs
    In Stock

    These knobs make it easy to collimate your Celestron C11 for optimum image quality. You don't need any tools, so you never have to worry about losi...

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    $19.95 - $19.95
    $19.95
    $19.95 - $19.95
    $19.95
  • 3 Collimating knobs for Celestron 11" SCT with Trifid secondary (not Edge HD)
    $19.95 - $19.95
    $19.95
    $19.95 - $19.95
    $19.95

    Bob’s Knobs 3 Collimating Knobs for Celestron 11" SCT with Trifid Secondary (Not Edge HD)

    Bob's Knobs
    More on the way

    These no-tool collimation knobs fit late model aluminum optical tube and most carbon These knobs make it easy to collimate your non-Edge HD Celestr...

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    $19.95 - $19.95
    $19.95
    $19.95 - $19.95
    $19.95
  • 3 Collimating knobs for Astro-Tech 12" RC astrograph secondary mirror
    $25.95 - $25.95
    $25.95
    $25.95 - $25.95
    $25.95

    Bob's Knobs 3 Collimating Knobs For Astro-Tech 12" Rc Astrograph Secondary Mirror

    Bob's Knobs
    In Stock

    These Bob's Knobs fit the secondary mirror housing of the 12" Astro-Tech Ritchey-Chrétiens only. Precise collimation is essential to get the best c...

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    $25.95 - $25.95
    $25.95
    $25.95 - $25.95
    $25.95
  • 3 Collimating knobs for Astro-Tech 10" RC astrograph secondary mirror
    $25.95 - $25.95
    $25.95
    $25.95 - $25.95
    $25.95

    Bob's Knobs 3 Collimating Knobs For Astro-Tech 10" Rc Astrograph Secondary Mirror

    Bob's Knobs
    In Stock

    These Bob's Knobs fit the secondary mirror housing of the 10" Astro-Tech Ritchey-Chrétiens only. Precise collimation is essential to get the best c...

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    $25.95 - $25.95
    $25.95
    $25.95 - $25.95
    $25.95
  • 3 Collimating knobs | Meade 16" LX200 with six screw secondary
    $25.95 - $25.95
    $25.95
    $25.95 - $25.95
    $25.95

    Bob’s Knob 3 Collimating Knobs | Meade 16" LX200 with Six Screw Secondary

    Bob's Knobs
    In Stock

    These knobs make it easy to collimate your Meade 16" LX200 Schmidt-Cassegrain or current Meade 16" LX200R Advanced Ritchey-Chrétien telescope for o...

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    $25.95 - $25.95
    $25.95
    $25.95 - $25.95
    $25.95
  • 3 Collimating knobs for Meade 16" LX200 with three collimating screws
    $25.95 - $25.95
    $25.95
    $25.95 - $25.95
    $25.95

    Bob’s Knobs 3 Collimating Knobs for Meade 16" LX200 With Three Collimating Screws

    Bob's Knobs
    In Stock

    These knobs make it easy to collimate your older three-screw secondary Meade 16" LX200 Schmidt-Cassegrain for optimum image quality. Current 16" Me...

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    $25.95 - $25.95
    $25.95
    $25.95 - $25.95
    $25.95

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