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Brand Name Rating # of Ratings
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 12" Ritchey-Chretien Secondary # AT12RC 5.0 1
Bob's Knobs Bob's Knobs for GSO made 12" Ritchey-Chretien Secondary # AT12RC 5.0 1
Bob's Knobs Bob's Knobs for Locking Losmandy GM-8 & G-11 Elevation Adjustment # LGele 5.0 1
Bob's Knobs Bob's Knobs for Meade 10" (25 cm) f/4 Schmidt-Newt Secondary # MSN10sec 5.0 1
Bob's Knobs Bob's Knobs for Meade 10" f/10 with 3-Screw Secondary # M10-3 5.0 3
Bob's Knobs Bob's Knobs for Meade 10" f/10 with 6-Screw Secondary # M10-6 5.0 1
Bob's Knobs Bob's Knobs for Meade 8" f/10 with 3-Screw Secondary # M8-3 5.0 1
Bob's Knobs Bob's Knobs for Meade Lightbridge 8" f/6 Primary # MLB8pri 5.0 1
Bob's Knobs Bob's Knobs for Orion 12" Ritchey-Chretien Secondary # AT12RC 5.0 1
Bob's Knobs Bob's Knobs for Orion Astrograph 4-Vane Phillips Screw Secondary Knobs # CNsec35 5.0 1
Bob's Knobs Bob's Knobs for Orion Secondary Set Screws on XT, SkyView & Others # CNsec30 5.0 7
Bob's Knobs Bob's Knobs for SkyWatcher 5", 6", 8" & 10" Newtonian Primary # SWpri 5.0 1
Bob's Knobs Bob's Knobs for Telrad Finder # Telrad 5.0 4
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
Docter Docter 1.25" & 2" 84-deg Ultra Wide Angle UWA Eyepiece - 12.5mm 5.0 5
Farpoint Astronomical Farpoint 1.25-2" Laser Collimator, 650nm Red Laser # FP210 5.0 1
Farpoint Astronomical Farpoint 2" Autocollimator # FP262 5.0 2
Farpoint Astronomical Farpoint Mounting Stud (Standard) for FAR-Sight Binocular Bracket # FP101 5.0 1
Bob's Knobs Bob's Knobs for SkyWatcher MN190 Mak-Newt Primary # SWMNpri 5.0 1
Farpoint Astronomical Farpoint Bahtinov Focus Mask for DSLR Camera Lens w/ 52mm Filter Thread # FP438 5.0 8
Farpoint Astronomical Farpoint Bahtinov Focus Mask for DSLR Camera Lens w/ 58mm Filter Thread # FP439 5.0 8
Farpoint Astronomical Farpoint Bahtinov Focus Mask for DSLR Camera Lens w/ 62mm Filter Thread # FP440 5.0 8
Farpoint Astronomical Farpoint Bahtinov Focus Mask for DSLR Camera Lens w/ 67mm Filter Thread # FP441 5.0 8
Farpoint Astronomical Farpoint Bahtinov Focus Mask for DSLR Camera Lens w/ 72mm Filter Thread # FP442 5.0 8
Farpoint Astronomical Farpoint Bahtinov Focus Mask for DSLR Camera Lens w/ 77mm Filter Thread # FP443 5.0 8
Farpoint Astronomical Farpoint Bahtinov Focus Mask for DSLR Camera Lens w/ 82mm Filter Thread # FP444 5.0 8
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