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Collimation Knobs & Springs

Items 51 - 60 of 60
Bob's Knobs Celestron 5" SCT Metric Stainless Steal Knobs - C5METSS

Bob's Knobs Celestron 6" SCT f/10 Stainless Steel Knobs - C6SS

SKU: BOB-C6SS
  • These Bob's Knobs Collimation Knobs fit Celestron 6" f/10 Schmidt-Cassegrain telescopes.
  • Each knob in this set measures 12 mm or 1/2" in diameter.
  • Construction consists of silver stainless steel for improved corrosion protection in areas with heavy humidity.
  • The factory supplied dust cover will fit most versions of this design with the exception of some earlier variants with these collimation knobs installed.
$27.00
Bob's Knobs Celestron 8" EdgeHD Stainless Steel Knobs

Bob's Knobs Celestron 8" EdgeHD Stainless Steel Knobs - C8EDGSS

SKU: BOB-C8EDGSS
  • Measuring 12 mm or 1/2" in diameter, these collimation knobs from Bob's Knobs fit Celestron 8" f/10 Schmidt-Cassegrain telescopes with EdgeHD optics and Fastar.
  • Construction consists of silver stainless steel for improved corrosion protection in areas with heavy humidity.
  • The factory supplied dust cover will fit as per usual with these collimation knobs installed.
  • These collimation knobs are not compatible with 8" SCTs with Fastar secondary that do not have EdgeHD optics.
$27.00
Bob's Knobs Celestron 8" Hyperstar Stainless Steel Knobs - C8HYPSS

Bob's Knobs Celestron 8" Hyperstar Stainless Steel Knobs - C8HYPSS

SKU: BOB-C8HYPSS
  • These Bob's Knobs collimation knobs fit Celestron 8" f/10 Schmidt-Cassegrain telescopes with Hyperstar and metric collimation screws.
  • Each knob in this set measures 12 mm or 1/2" in diameter.
  • Construction consists of silver stainless steel for improved corrosion protection in areas with heavy humidity.
  • The factory supplied dust cover will fit as per usual with these collimation knobs installed.
$27.00
Bob's Knobs Celestron 8" f/10 Metric Stainless Steal Knobs - C8METSS

Bob's Knobs Celestron 8" f/10 Metric Stainless Steel Knobs - C8METSS

SKU: BOB-C8METSS
  • Measuring 12 mm or 1/2" in diameter, these Bob's Knobs collimation knobs fit Celestron 8" f/10 Schmidt-Cassegrain telescope models manufactured in 2005 or later with black Phillips factory collimation screws that have metric threads.
  • Construction consists of silver stainless steel for improved corrosion protection in areas with heavy humidity.
  • The factory supplied dust cover will fit as per usual with these collimation knobs installed.
  • Prior to installation, please make sure the knob threads and factory screw threads match.
  • These collimation knobs are not compatible with Fastar telescopes that have EdgeHD optics.
$27.00
Bob's Knobs Celestron 9.25" SCT f/10 Metric Stainless Steel Knobs

Bob's Knobs Celestron 9.25" SCT f/10 Metric Stainless Steel Knobs - C9.25METSS

SKU: BOB-C9.25METSS
  • Measuring 12 mm or 1/2" in diameter, these Bob's Knobs collimation knobs fit Celestron 9.25" f/10 Schmidt-Cassegrain telescope models with metric screw threads such as the CPC 925.
  • Construction consists of silver stainless steel for improved corrosion protection in environments with heavy moisture.
  • The factory supplied dust cover will fit as per usual with these collimation knobs installed.
  • Prior to installation, please make sure the knob threads and factory screw threads match.
  • These collimation knobs are not compatible with C925 SCTs with "Trifid" Fastar or EdgeHD optics.
$27.00
Bob's Knobs Meade 12" SCT 6-Screw f/8 Knobs

Bob's Knobs Meade 12" SCT 6-Screw f/8 Knobs - M12-6F8

SKU: BOB-M12-6F8
  • These Bob's Knobs collimation knobs are designed to fit Meade 12" f/8 Schmidt-Cassegrain telescopes with 6-screw secondary housing such as the LX600 and LX850.
  • Each knob in this set measures 16 mm or 5/8" in diameter.
  • Constructed from a black anodized aluminum alloy.
  • The factory supplied dust cover will fit as per usual with these collimation knobs installed.
  • Comes with an Allen wrench for factor collimation screw removal.
$21.00
Bob's Knobs Meade 14" SCT 6-Screw f/8 Knobs

Bob's Knobs Meade 14" SCT 6-Screw f/8 Knobs - M14-6F8

SKU: BOB-M14-6F8
  • These Bob's Knobs collimation knobs are designed to fit Meade 14" f/8 Schmidt-Cassegrain telescope models with 6-screw secondary housing and exposed factory collimation screws like the LX200ACF, LX600, and LX850.
  • Each knob in this set measures 16 mm or 5/8" in diameter.
  • Constructed from a black anodized aluminum alloy.
  • The factory supplied dust cover will fit as per usual with these collimation knobs installed.
  • Comes with an Allen wrench for factor collimation screw removal.
$21.00
Bob's Knobs Takahashi Mewlon 180 Secondary Knobs

Bob's Knobs Takahashi Mewlon 180 Secondary Knobs - MEW180

SKU: BOB-MEW180
  • Secondary collimation knobs from Bob's Knobs designed to fit Takahashi Mewlon 180 telescopes.
  • Each knob in this set measures 13 mm or 1/2" in diameter.
  • Made of black plastic with black anodized aluminum alloy threads.
  • The factory supplied dust cover will fit as per usual with these collimation knobs installed.
$22.00
Bob's Knobs Takahashi Mewlon 210 Secondary Knobs - MEW210

Bob's Knobs Takahashi Mewlon 210 Secondary Knobs - MEW210

SKU: BOB-MEW210
  • Secondary collimation knobs from Bob's Knobs designed to fit Takahashi Mewlon 210 telescopes.
  • Each knob in this set measures 13 mm or 1/2" in diameter.
  • Made of black plastic with stainless steel threads.
  • The factory supplied dust cover will fit as per usual with these collimation knobs installed.
  • Includes a set of long spacers for clearing the secondary housing lip.
$22.00
Bob's Knobs Takahashi Mewlon 300 Secondary Knobs - MEW300

Bob's Knobs Takahashi Mewlon 300 Secondary Knobs - MEW300

SKU: BOB-MEW300
  • Secondary collimation knobs from Bob's Knobs designed to fit Takahashi Mewlon 300 telescopes.
  • Adjustment knobs measure 13 mm or 1/2" in diameter while the lock knobs measure 16 mm or 5/8" in diameter.
  • Both the adjustment knobs and lock knobs contain black plastic construction and stainless steel threads.
  • The factory supplied dust cover will fit as per usual with these collimation knobs installed.
  • The Takahashi Mewlon 300's push-pull design makes 6 collimation knobs necessary.
$27.00