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Brand Name Rating # of Ratings
Hubble Optics Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes 4.6 58
All Other CMC Large Focus Knob for Coronado PST 5.0 8
Bob's Knobs Bob's Knobs for Orion Secondary Set Screws on XT, SkyView & Others # CNsec30 5.0 7
All Other The Great Atlas of the Sky by Piotr Brych 4.7 7
All Other ROR Residual Oil Remover - 1oz. Dropper Style Bottle 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
All Other All Other: National Audubon Society Field Guide to the Night Sky 4.0 3
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
All Other ROR Residual Oil Remover - 2oz. Pump Spray Bottle 4.3 3
Canon Canon EOS Digital Rebel XT / 350D 5.0 2
All Other All Other: Cambridge Star Atlas (by W. Tirion) 3.5 2
All Other All Other: Practical Skywatching 4.0 2
All Other All Other: Mag-7 Star Atlas 4.0 2
All Other All Other: Flents Eye Patch 4.5 2
All Other All Other: Burnham`s Celestial Handbook 4.0 2
All Other All Other: Celestia 4.5 2
All Other Astro Tray Heavy-Duty Eyepiece Tray / Tripod Stabilizer for Astro-Tech Voyager, GSO SkyView & Oberwerk Tripod / Mount 5.0 2
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
All Other GSO Single Speed Replacement Focuser Knob for GSO Crayford Focusers 5.0 2
All Other Clearance: *2nd* Astro Tray Heavy-Duty Eyepiece Tray / Tripod Stabilizer for Astro-Tech Voyager, GSO SkyView & Oberwerk Tripod / Mount 5.0 2
Cave Optical Cave Optical Astrola 12.5" 5.0 1
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