Skip to content
BE AWARE OF ASTRONOMY PLUS WEBSITE COPY. // Free Shipping for orders over 500$* Some exception may apply.
BE AWARE OF ASTRONOMY PLUS WEBSITE COPY. // Free Shipping for orders over 500$* Some exception may apply

Knobs

Simple knobs will make your mount adjustment and collimation experience way better!

Filters

$
$
  • Original price $27.00 - Original price $38.00
    Original price
    $27.00 - $38.00
    $27.00 - $38.00
    Current price $27.00

    Bob'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 details
    Original price $27.00 - Original price $38.00
    Original price
    $27.00 - $38.00
    $27.00 - $38.00
    Current price $27.00
  • Original price $27.86 - Original price $27.86
    Original price
    $27.86
    $27.86 - $27.86
    Current price $27.86

    Bob'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 details
    Original price $27.86 - Original price $27.86
    Original price
    $27.86
    $27.86 - $27.86
    Current price $27.86
  • Original price $31.00 - Original price $31.00
    Original price
    $31.00
    $31.00 - $31.00
    Current price $31.00

    Bob'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 details
    Original price $31.00 - Original price $31.00
    Original price
    $31.00
    $31.00 - $31.00
    Current price $31.00
  • Original price $27.00 - Original price $47.00
    Original price
    $27.00 - $47.00
    $27.00 - $47.00
    Current price $27.00

    Bob'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 details
    Original price $27.00 - Original price $47.00
    Original price
    $27.00 - $47.00
    $27.00 - $47.00
    Current price $27.00
  • Original price $31.00 - Original price $35.00
    Original price
    $31.00 - $35.00
    $31.00 - $35.00
    Current price $31.00

    Bob's Knobs for Celestron 11" SCT

    Bob's Knobs for Celestron 11" SCT We offer knobs for all versions of the Celestron 11” f/10 Schmidt-Cassegrain secondary with either standard or me...

    View full details
    Original price $31.00 - Original price $35.00
    Original price
    $31.00 - $35.00
    $31.00 - $35.00
    Current price $31.00
  • Original price $47.00 - Original price $47.00
    Original price
    $47.00
    $47.00 - $47.00
    Current price $47.00

    Bob'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 details
    Original price $47.00 - Original price $47.00
    Original price
    $47.00
    $47.00 - $47.00
    Current price $47.00
  • Original price $27.00 - Original price $38.00
    Original price
    $27.00 - $38.00
    $27.00 - $38.00
    Current price $27.00

    Bob'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 details
    Original price $27.00 - Original price $38.00
    Original price
    $27.00 - $38.00
    $27.00 - $38.00
    Current price $27.00
  • Original price $31.00 - Original price $38.00
    Original price
    $31.00 - $38.00
    $31.00 - $38.00
    Current price $31.00

    Bob'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 details
    Original price $31.00 - Original price $38.00
    Original price
    $31.00 - $38.00
    $31.00 - $38.00
    Current price $31.00
  • Original price $37.75 - Original price $37.75
    Original price
    $37.75
    $37.75 - $37.75
    Current price $37.75

    Bob'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 details
    Original price $37.75 - Original price $37.75
    Original price
    $37.75
    $37.75 - $37.75
    Current price $37.75
  • Original price $37.75 - Original price $37.75
    Original price
    $37.75
    $37.75 - $37.75
    Current price $37.75

    Bob'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 details
    Original price $37.75 - Original price $37.75
    Original price
    $37.75
    $37.75 - $37.75
    Current price $37.75
  • Original price $31.00 - Original price $31.00
    Original price
    $31.00
    $31.00 - $31.00
    Current price $31.00

    Bob’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 details
    Original price $31.00 - Original price $31.00
    Original price
    $31.00
    $31.00 - $31.00
    Current price $31.00
  • Original price $43.00 - Original price $43.00
    Original price
    $43.00
    $43.00 - $43.00
    Current price $43.00

    Losmandy 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 details
    Original price $43.00 - Original price $43.00
    Original price
    $43.00
    $43.00 - $43.00
    Current price $43.00
  • Original price $173.00 - Original price $173.00
    Original price
    $173.00
    $173.00 - $173.00
    Current price $173.00

    Losmandy 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 details
    Original price $173.00 - Original price $173.00
    Original price
    $173.00
    $173.00 - $173.00
    Current price $173.00
  • Original price $40.00 - Original price $40.00
    Original price
    $40.00
    $40.00 - $40.00
    Current price $40.00

    Losmandy 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 details
    Original price $40.00 - Original price $40.00
    Original price
    $40.00
    $40.00 - $40.00
    Current price $40.00
  • Original price $34.51 - Original price $34.51
    Original price
    $34.51
    $34.51 - $34.51
    Current price $34.51

    Bob'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 details
    Original price $34.51 - Original price $34.51
    Original price
    $34.51
    $34.51 - $34.51
    Current price $34.51
Free Shipping

in Canada over 500$+* bf txs

Buy Now, Pay Later

Paybright and Sezzle at Check Out

Target the Right Equipment

Contact us!

Price Match

Find a Better Price? We Will Match it!

Sign Up to Astronomy Plus Newsletters

Subscribe to our Newsletter to be the first to be inform about Promotions, New Products and More!