Gift-Cards
Knobs
Simple knobs will make your mount adjustment and collimation experience way better!
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Original price $27.86 - Original price $27.86Original price$27.86$27.86 - $27.86Current price $27.86Bob's Knobs for Common Newtonian Secondary
Bob's Knobs for Common Newtonian Secondary Fits: Celestron C8-N/NGT, C10-N/NGT, Orion Astrograph, Astroview, SkyQuest XX and XT, Skyview, SkyWatche...
View full detailsOriginal price $27.86 - Original price $27.86Original price$27.86$27.86 - $27.86Current price $27.86 -
Original price $27.00 - Original price $38.00Original price$27.00 - $38.00$27.00 - $38.00Current price $27.00Bob's Knobs for Celestron 8" SCT
Bob's Knobs for Celestron 8" SCT A. Knobs for C8 f/10 Pre-1980 Orange-Tube Secondary Part: C8orgFits: Pre-1980 Celestron 8” (20 cm) f/10 SCT with ...
View full detailsOriginal price $27.00 - Original price $38.00Original price$27.00 - $38.00$27.00 - $38.00Current price $27.00 -
Original price $31.00 - Original price $31.00Original price$31.00$31.00 - $31.00Current price $31.00Bob's Knobs for Celestron 6” SCT Black Oxide (C6BO)
Bob's Knobs for Celestron 6” SCT Black Oxide The knobs below will fit almost all versions of the Celestron 6” Schmidt-Cassegrain secondary. Price i...
View full detailsOriginal price $31.00 - Original price $31.00Original price$31.00$31.00 - $31.00Current price $31.00 -
Original price $27.86 - Original price $34.51Original price$27.86 - $34.51$27.86 - $34.51Current price $27.86Bob's Knobs for Celestron 8" EdgeHD ONLY - Black Oxide (C8edgBO)
Bob's Knobs for Celestron 8" EdgeHD ONLY - Black Oxide Fits: Celestron 8” (20 cm) f/10 SCT with Fastar secondary and EdgeHD optics.Knobs: Black oxi...
View full detailsOriginal price $27.86 - Original price $34.51Original price$27.86 - $34.51$27.86 - $34.51Current price $27.86 -
Original price $27.00 - Original price $47.00Original price$27.00 - $47.00$27.00 - $47.00Current price $27.00Bob's Knobs for Meade SCT
Bob's Knobs for Meade SCT A. Knobs for Meade 12” f/10 with 3-Screw or 4-Screw Secondary Part: M12-3Fits: Meade 12” (30 cm) f/10 SCT versions with ...
View full detailsOriginal price $27.00 - Original price $47.00Original price$27.00 - $47.00$27.00 - $47.00Current price $27.00 -
Original price $30.52 - Original price $30.52Original price$30.52$30.52 - $30.52Current price $30.52Bob's Knobs for Celestron 11" Fastar Metric Thread - EdgeHD (C11metfst)
Bob's Knobs for Celestron 11" Fastar Metric Thread (ALSO EdgeHD) Fits: Celestron 11” (28 cm) f/10 SCT versions (metal or carbon fiber tube) with me...
View full detailsOriginal price $30.52 - Original price $30.52Original price$30.52$30.52 - $30.52Current price $30.52 -
Original price $47.00 - Original price $47.00Original price$47.00$47.00 - $47.00Current price $47.00Bob's Knob for Common Newtonian Primary
Bob's Knob for Common Newtonian Primary Common Newtonian-style telescope primary configurations: These knobs will fit most Newtonian reflectors mad...
View full detailsOriginal price $47.00 - Original price $47.00Original price$47.00$47.00 - $47.00Current price $47.00 -
Original price $27.00 - Original price $38.00Original price$27.00 - $38.00$27.00 - $38.00Current price $27.00Bob's Knobs for Celestron 5" SCT
Bob's Knobs for Celestron 5" SCT A. Knobs for C5 f/10 Secondary with Standard Collimation Screw ThreadsPart Part: C5stdFits: Celestron 5” (13 cm) ...
View full detailsOriginal price $27.00 - Original price $38.00Original price$27.00 - $38.00$27.00 - $38.00Current price $27.00 -
Original price $31.00 - Original price $38.00Original price$31.00 - $38.00$31.00 - $38.00Current price $31.00Bob's Knobs for Celestron 9.25” SCT
Bob's Knobs for Celestron 9.25” SCT A. Knobs for C9.25 f/10 Secondary with Standard Collimation Screw Threads Part: C9.25stdFits: Celestron 9.25”...
View full detailsOriginal price $31.00 - Original price $38.00Original price$31.00 - $38.00$31.00 - $38.00Current price $31.00 -
![Bob's Knobs for Astro-Tech [also GSO, iOptron, MallinCam, Orion, TPO] 8" f/8 Ritchey-Crétien Secondary (AT8RC) - Astronomy Plus](//astronomyplus.com/cdn/shop/files/bob-s-knobs-for-astro-tech-also-gso-ioptron-mallincam-orion-tpo-8-f8-ritchey-cretien-secondary-at8rc-astronomy-plus_152x152.webp?v=1690490819)
Original price $37.75 - Original price $37.75Original price$37.75$37.75 - $37.75Current price $37.75Bob's Knobs for Astro-Tech [also GSO, iOptron, MallinCam, Orion, TPO] 8" f/8 Ritchey-Crétien Secondary (AT8RC)
Bob's Knobs for Astro-Tech [also GSO, iOptron, MallinCam, Orion, TPO] 8" f/8 Ritchey-Crétien Secondary Fits: Astro-Tech, GSO, iOptron, MallinCam, O...
View full detailsOriginal price $37.75 - Original price $37.75Original price$37.75$37.75 - $37.75Current price $37.75 -
![Bob's Knobs for Astro-Tech [also GSO, iOptron, MallinCam, Orion, TPO] 6" f/9 Ritchey-Crétien Secondary (AT6RC) - Astronomy Plus](//astronomyplus.com/cdn/shop/files/bob-s-knobs-for-astro-tech-also-gso-ioptron-mallincam-orion-tpo-6-f9-ritchey-cretien-secondary-at6rc-astronomy-plus_152x152.webp?v=1690490819)
Original price $37.75 - Original price $37.75Original price$37.75$37.75 - $37.75Current price $37.75Bob's Knobs for Astro-Tech [also GSO, iOptron, MallinCam, Orion, TPO] 6" f/9 Ritchey-Crétien Secondary (AT6RC)
Bob's Knobs for Astro-Tech [also GSO, iOptron, MallinCam, Orion, TPO] 6" f/9 Ritchey-Crétien Secondary Fits: Astro-Tech, GSO, iOptron, MallinCam, O...
View full detailsOriginal price $37.75 - Original price $37.75Original price$37.75$37.75 - $37.75Current price $37.75 -
Original price $31.00 - Original price $31.00Original price$31.00$31.00 - $31.00Current price $31.00Bob’s Knobs for Celestron 14″ SCT (C14metphi)
Bob’s Knobs for Celestron 14″ SCT Fits: Celestron 14” (36 cm) f/11 SCT versions with factory headless set-style (Allen or slotted) collimation scre...
View full detailsOriginal price $31.00 - Original price $31.00Original price$31.00$31.00 - $31.00Current price $31.00 -
Original price $43.00 - Original price $43.00Original price$43.00$43.00 - $43.00Current price $43.00Losmandy Tripod Knob Set (TKS)
Losmandy Tripod Knob Set The Losmandy Tripod Knob Set contains three Machined aluminum knobs with stainless steel threaded shafts. For mounting equ...
View full detailsOriginal price $43.00 - Original price $43.00Original price$43.00$43.00 - $43.00Current price $43.00 -
Original price $173.00 - Original price $173.00Original price$173.00$173.00 - $173.00Current price $173.00Losmandy Club Knob Set (CKS)
Losmandy Club Knob Set The Losmandy Club Knob Set contains one R.A. and one DEC. club knob with three handles at 30 degrees each. Makes clutch knob...
View full detailsOriginal price $173.00 - Original price $173.00Original price$173.00$173.00 - $173.00Current price $173.00 -
Original price $40.00 - Original price $40.00Original price$40.00$40.00 - $40.00Current price $40.00Losmandy Altitude Lock Knob Set (AKS)
Losmandy Altitude Lock Knob Set Losmandy Altitude Lock Knob Set contains two machined aluminum knobs with stainless steel threaded shafts. Allows t...
View full detailsOriginal price $40.00 - Original price $40.00Original price$40.00$40.00 - $40.00Current price $40.00 -
Original price $34.51 - Original price $34.51Original price$34.51$34.51 - $34.51Current price $34.51Bob's Knobs for SkyWatcher & Celestron Newtonian Primary (SWpri)
Bob's Knobs for SkyWatcher & Celestron Newtonian Primary Fits: SkyWatcher Newtonian telescopes with factory collimation screws.Primary collima...
View full detailsOriginal price $34.51 - Original price $34.51Original price$34.51$34.51 - $34.51Current price $34.51 -
Original price $27.86 - Original price $34.51Original price$27.86 - $34.51$27.86 - $34.51Current price $27.86Bob's Knobs for Celestron 8" With HYPERSTAR
Bob's Knobs for Celestron 8" With HYPERSTAR Fits: Celestron 8” (20 cm) f/10 SCT with metric collimation screws and the conversion kit for the Hyper...
View full detailsOriginal price $27.86 - Original price $34.51Original price$27.86 - $34.51$27.86 - $34.51Current price $27.86 -
Original price $26.53 - Original price $26.53Original price$26.53$26.53 - $26.53Current price $26.53Bob's Knobs for Celestron 11" Fastar Standard Thread - Not EdgeHD (C11stdfst)
Bob's Knobs for Celestron 11" Fastar Standard Thread (NOT EdgeHD) Fits: Celestron 11” (28 cm) f/10 SCT versions (metal or carbon fiber tube) with ...
View full detailsOriginal price $26.53 - Original price $26.53Original price$26.53$26.53 - $26.53Current price $26.53
![Bob's Knobs for Astro-Tech [also GSO, iOptron, MallinCam, Orion, TPO] 8" f/8 Ritchey-Crétien Secondary (AT8RC) - Astronomy Plus](http://astronomyplus.com/cdn/shop/files/bob-s-knobs-for-astro-tech-also-gso-ioptron-mallincam-orion-tpo-8-f8-ritchey-cretien-secondary-at8rc-astronomy-plus_152x152.webp?v=1690490819)
![Bob's Knobs for Astro-Tech [also GSO, iOptron, MallinCam, Orion, TPO] 6" f/9 Ritchey-Crétien Secondary (AT6RC) - Astronomy Plus](http://astronomyplus.com/cdn/shop/files/bob-s-knobs-for-astro-tech-also-gso-ioptron-mallincam-orion-tpo-6-f9-ritchey-cretien-secondary-at6rc-astronomy-plus_152x152.webp?v=1690490819)
