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Brand Name Rating # of Ratings
Bob's Knobs Bob's Knobs for SkyWatcher MN190 Mak-Newt Primary # SWMNpri 5.0 1
Bob's Knobs Clearance: *2nd* Bob's Knobs for Celestron C11 f/10 with Trifid Fastar Secondary Housing and Standard Collimation Screw Threads # C11stdfst 4.0 1
Farpoint Astronomical Clearance: *2nd* Farpoint Bahtinov Focus Mask for DSLR Camera Lens w/ 67mm Filter Thread # FP441 4.0 1
Bob's Knobs Clearance: *2nd* Bob's Knobs for Celestron C8 f/10 Secondary with EdgeHD Optics # C8edg 4.0 1
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
Farpoint Astronomical Farpoint 2" Autocollimator # FP262 5.0 2
Farpoint Astronomical Farpoint Carey Focus Mask for Telescopes With Dew Shield or Front End Diameter from 2.5" to 4.5" # FP421 4.5 2
Farpoint Astronomical Farpoint Carey Focus Mask for Telescopes With Dew Shield or Front End Diameter from 3.5" to 6.5" # FP422 4.5 2
Farpoint Astronomical Farpoint Carey Focus Mask for Telescopes With Dew Shield or Front End Diameter from 5.5" to 8.5" # FP423 4.5 2
Farpoint Astronomical Farpoint Carey Focus Mask for Telescopes With Dew Shield or Front End Diameter from 6.5" to 9.5" # FP424 4.5 2
Farpoint Astronomical Farpoint Carey Focus Mask for Telescopes With Dew Shield or Front End Diameter from 8.5" to 10.5" # FP425 4.5 2
Farpoint Astronomical Farpoint Carey Focus Mask for Celestron C8 SCT # FP431 4.5 2
Farpoint Astronomical Farpoint Carey Focus Mask for Meade 8" SCT # FP432 4.5 2
Farpoint Astronomical Farpoint Carey Focus Mask for Celestron C11 SCT # FP433 4.5 2
Farpoint Astronomical Farpoint Carey Focus Mask for Celestron C11 Hyperstar # FP433H 4.5 2
Farpoint Astronomical Farpoint Carey Focus Mask for Meade 12" SCT # FP435 4.5 2
Farpoint Astronomical Farpoint Carey Focus Mask for Celestron C9.25 SCT # FP436 4.5 2
Farpoint Astronomical Farpoint Carey Focus Mask for Celestron C9.25 Hyperstar # FP436H 4.5 2
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
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
Farpoint Astronomical Farpoint FAR-Sight Binocular Bracket 4.6 5
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