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Brand Name Rating # of Ratings
Howie Glatter Howie Glatter Holographic Attachment for Laser Collimator - Concentric Circle Pattern 5.0 8
Howie Glatter Howie Glatter Parallizer - 2" to 1.25" Eyepiece Adapter 5.0 8
Bob's Knobs Bob's Knobs for Orion Secondary Set Screws on XT, SkyView & Others # CNsec30 5.0 7
Howie Glatter Howie Glatter 650nm Standard Brightness Red Laser Collimator - 1.25" 4.7 7
Howie Glatter Howie Glatter 650nm Standard Brightness Red Laser Collimator - 1.25" & 2" 4.7 7
Howie Glatter Howie Glatter 650nm Standard Brightness Red Laser Collimator - 2" 4.7 7
Howie Glatter Howie Glatter 635nm High Brightness Red Laser Collimator - 1.25" 5.0 6
Howie Glatter Howie Glatter 635nm High Brightness Red Laser Collimator - 1.25" & 2" 5.0 6
Howie Glatter Howie Glatter 635nm High Brightness Red Laser Collimator - 2" 5.0 6
Howie Glatter Howie Glatter TuBlug - Barlowed Collimation Plug for Newtonian Telescopes - 1.25" 5.0 6
Howie Glatter Howie Glatter TuBlug - Barlowed Collimation Plug for Newtonian Telescopes - 2" 5.0 6
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 C9.25 f/10 Secondary with Trifid Fastar Housing # C9.25fst 5.0 4
Bob's Knobs Bob's Knobs for Telrad Finder # Telrad 5.0 4
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 Metric Collimation Screw Threads (not for EdgeHD or Hyperstar) # C8met 5.0 3
Bob's Knobs Bob's Knobs for Meade 10" f/10 with 3-Screw Secondary # M10-3 5.0 3
Howie Glatter Howie Glatter Holographic Attachment for Laser Collimator - Crosshair and Circle Scope Pattern 5.0 3
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 Celestron C5 f/10 Secondary with Standard Collimation Screw Threads # C5std 5.0 2
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 Vixen R200SS Primary # R200pri 5.0 2
Bob's Knobs Bob's Knobs Springs for Meade Lightbridge (8", 10" & 12") f/5 Primary # CNspr 5.0 2
Howie Glatter Howie Glatter Blug - Barlowed Collimation Plug for Newtonian Telescopes - 1.25" 5.0 2
Howie Glatter Howie Glatter Blug - Barlowed Collimation Plug for Newtonian Telescopes - 2" 5.0 2
Howie Glatter Howie Glatter SkyFinder Laser Pointer Bracket - for Telrad 5.0 2
TEC TEC MC250/20 250mm f/20 5.0 1
TEC TEC APO140 140mm f/7 5.0 1
Bob's Knobs Bob's Knobs for Astro-Tech AT12RC Ritchey-Chretien Secondary # AT12RC 5.0 1
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