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ItemHub All Items

Brand Name Rating # of Ratings
Bob's Knobs Bob's Knobs for Astro-Tech AT10RC Ritchey-Chretien Secondary # AT10RC No Reviews 0
Bob's Knobs Bob's Knobs for Astro-Tech AT12RC Ritchey-Chretien Secondary # AT12RC 5.0 1
Bob's Knobs Bob's Knobs for Astro-Tech AT6RC and AT8RC Ritchey-Chretien Secondary # AT8RC No Reviews 0
Bob's Knobs Bob's Knobs for Attaching Equatorial Head to Upper Losmandy GM-8 & G-11 Tripod Section # LGtri No Reviews 0
Bob's Knobs Bob's Knobs for C11 f/10 with “Trifid” Fastar Secondary Housing and Metric Collimation Screw Threads # C11metfst 5.0 2
Bob's Knobs Bob's Knobs for C14 f/11 Secondary with Factory Phillips Collimation Screws with Metric Threads #C14metphi No Reviews 0
Bob's Knobs Bob's Knobs for Celestron C11 f/10 with Flat Secondary Housing and Metric Collimation Screw Threads # C11met 5.0 1
Bob's Knobs Bob's Knobs for Celestron C11 f/10 with Flat Secondary Housing and Standard Collimation Screw Threads # C11std No Reviews 0
Bob's Knobs Bob's Knobs for Celestron C11 f/10 with Trifid Fastar Secondary Housing and Standard Collimation Screw Threads # C11stdfst No Reviews 0
Bob's Knobs Bob's Knobs for Celestron C14 f/11 Secondary with Factory Headless Set-Style Collimation Screws # C14set 5.0 1
Bob's Knobs Bob's Knobs for Celestron C14 f/11 Secondary with Factory Phillips Collimation Screws with Standard Threads # C14stdphi No Reviews 0
Bob's Knobs Bob's Knobs for Celestron C5 f/10 Secondary with Metric Collimation Screw Threads # C5met No Reviews 0
Bob's Knobs Bob's Knobs for Celestron C5 f/10 Secondary with Standard Collimation Screw Threads # C5std 5.0 2
Bob's Knobs Bob's Knobs for Celestron C6 f/10 Secondary with Metric Collimation Screw Threads # C6 5.0 4
Bob's Knobs Bob's Knobs for Celestron C8 f/10 Post-1980 Secondary with Standard Collimation Screw Threads # C8std 5.0 4
Bob's Knobs Bob's Knobs for Celestron C8 f/10 Pre-1980 Orange-Tube Secondary # C8org No Reviews 0
Bob's Knobs Bob's Knobs for Celestron C8 f/10 Secondary with EdgeHD Optics # C8edg 5.0 3
Bob's Knobs Bob's Knobs for Celestron C8 f/10 Secondary with Hyperstar and Metric Collimation Screw Threads # C8hyp No Reviews 0
Bob's Knobs Bob's Knobs for Celestron C8 f/10 Secondary with Metric Collimation Screw Threads (not for EdgeHD or Hyperstar) # C8met 5.0 3
Bob's Knobs Bob's Knobs for Celestron C9.25 f/10 Secondary with Metric Collimation Screw Threads # C9.25met No Reviews 0
Bob's Knobs Bob's Knobs for Celestron C9.25 f/10 Secondary with Standard Collimation Screw Threads # C9.25std 5.0 2
Bob's Knobs Bob's Knobs for Celestron C9.25 f/10 Secondary with Trifid Fastar Housing # C9.25fst 5.0 4
Bob's Knobs Bob's Knobs for GSO 10" Ritchey-Chretien Secondary # AT10RC No Reviews 0
Bob's Knobs Bob's Knobs for GSO 12" Ritchey-Chretien Secondary # AT12RC 5.0 1
Bob's Knobs Bob's Knobs for GSO 6" and 8" Ritchey-Chretien Secondary # AT8RC No Reviews 0
Bob's Knobs Bob's Knobs for GSO made 10" Ritchey-Chretien Secondary # AT10RC No Reviews 0
Bob's Knobs Bob's Knobs for GSO made 12" Ritchey-Chretien Secondary # AT12RC 5.0 1
Bob's Knobs Bob's Knobs for GSO made 6" and 8" Ritchey-Chretien Secondary # AT8RC No Reviews 0
Bob's Knobs Bob's Knobs for Intes MK-65, MK-66, MK-67 & Orion Argonaut 150 Secondary # MK67 No Reviews 0
Bob's Knobs Bob's Knobs for Intes-Micro Alter M500 Secondary # IM500 No Reviews 0