Collimation Tools

Proper optical collimation is essential to achieving top performance from your telescope. A properly collimated telescope will provide pleasing images over a wide range of magnifications. An improperly collimated telescope may fail to show stars as round points of light, especially towards the edge of field. Refractors and Maksutov-Cassegrain telescopes do not normally require collimation, but most other types of telescopes do. Laser collimators are an almost indispensable tool for Newtonian telescopes; however, they are not particularly useful for Schmidt-Cassegrain telescopes.

  • Astrozap Artificial Star
  • Astrozap Artificial Star

  • The Astrozap Artificial Star provides a stable reference for collimation in lieu of an actual star, eliminating the issues of star drift or poor seeing. read more...
  • Our price: $110.00

  • Celestron Collimation Eyepiece
  • Celestron Collimation Eyepiece

  • The Celestron 1.25 inch Cheshire Collimation Eyepiece is a multi purpose tool. As a Cheshire it will help collimate your reflecting and refracting telescopes. read more...
  • Our price: $37.95

  • Celestron C5 f/10 with Standard Threads
  • Celestron C5 f/10 with Standard Threads

  • These knobs will fit all C5 models made prior to 2006, and all 2006 and later models EXCEPT those with black Phillips factory collimation screws. read more...
  • Our price: $16.95

  • Orion LaserMate Deluxe II Telescope Laser Collimator
  • Orion LaserMate Deluxe II Telescope Laser Collimator

  • Convenient rear view port lets you easily collimate optics from the rear of the reflector telescope read more...
  • Our price: $69.00

  • Celestron C5 f/10 with Metric Threads
  • Celestron C5 f/10 with Metric Threads

  • These knobs will fit only 2006 and later Celestron C5 models that have black Phillips factory collimation screws. read more...
  • Our price: $20.95

  • Celestron C6 f/10 with Metric Threads
  • Celestron C6 f/10 with Metric Threads

  • The knobs will fit all versions of the Celestron 6” Schmidt-Cassegrain secondary. read more...
  • Our price: $20.95

  • Celestron C8 f/10 EdgeHD
  • Celestron C8 f/10 EdgeHD

  • These knobs will fit only the Celestron 8” EdgeHD optics with the Fastar secondary. read more...
  • Our price: $20.95

  • Celestron C8 f/10 with Metric Threads
  • Celestron C8 f/10 with Metric Threads

  • These knobs fit most Celestron C8 made in 2005 and later with black Phillips factory collimation screws; not for Fastar or EdgeHD models. read more...
  • Our price: $20.95

  • Celestron C8 f/10 Post-1980 with Standard Threads
  • Celestron C8 f/10 Post-1980 with Standard Threads

  • These knobs fit post-1980 Celestron C8 with factory Allen or silver Phillips collimation screws, with or without Fastar secondary with silver collimation screws. read more...
  • Our price: $16.95

  • Celestron C9.25 f/10 EdgeHD and Fastar
  • Celestron C9.25 f/10 EdgeHD and Fastar

  • These knobs fit Celestron C9.25” f/10 EdgeHD and Fastar optical tubes with the triffid style secondary mirror housing. read more...
  • Our price: $22.95

  • Celestron 9.25 f/10 with Metric Threads
  • Celestron 9.25 f/10 with Metric Threads

  • Bob's Knobs allow you to collimate your Celestron Schmidt-Cassedgrain or EdgeHD optics without tools. read more...
  • Our price: $20.95

  • Celestron C9.25 f/10 with Standard Threads
  • Celestron C9.25 f/10 with Standard Threads

  • These knobs fit Celestron C9.25 optical tubes equipped with silver Phillips collimation screws. read more...
  • Our price: $16.95

  • Celestron C11 f/10 Fastar with Metric Threads
  • Celestron C11 f/10 Fastar with Metric Threads

  • Fits Celestron C11 with Fastar secondary housing and black Phillips factory collimation screws. read more...
  • Our price: $22.95

  • Celestron C11 f/10 Fastar with Standard Threads
  • Celestron C11 f/10 Fastar with Standard Threads

  • Fits Celestron C11 with Fastar secondary housing and silver Phillips factory collimation screws. read more...
  • Our price: $19.95

  • Celestron C11 f/10 with Flat Secondary and Metric Threads
  • Celestron C11 f/10 with Flat Secondary and Metric Threads

  • Fits Celestron C11 f/10 SCT versions with flat secondary housing and black Phillips collimation screws. read more...
  • Our price: $20.95

  • Celestron C11 f/10 with Flat Secondary and Standard Threads
  • Celestron C11 f/10 with Flat Secondary and Standard Threads

  • Fits Celestron C11 f/10 SCT versions with flat secondary housing and standard collimation screw threads (not for CPC 1100 or EdgeHD). read more...
  • Our price: $19.95

  • Secondary Knobs for Orion and Sky-Watcher Dobsonians 30 mm
  • Secondary Knobs for Orion and Sky-Watcher Dobsonians 30 mm

  • These knobs with 30 mm screws replace the set factory secondary mirror collimation screws on Orion and Sky-Watcher Dobsonian telescopes. read more...
  • Our price: $20.95

  • Secondary Knobs for Orion and Sky-Watcher Dobsonians 35 mm
  • Secondary Knobs for Orion and Sky-Watcher Dobsonians 35 mm

  • These knobs with 35 mm screws replace the set factory secondary mirror collimation screws on Orion and Sky-Watcher Dobsonian telescopes. read more...
  • Our price: $20.95

  • Sky-Watcher Dobsonian Primary
  • Sky-Watcher Dobsonian Primary

  • Primary mirror collimation knobs for Sky-Watcher Newtonian (Dobsonian) telescopes with factory collimation screws. read more...
  • Our price: $25.95

  • Howie Glatter 1.25-inch 635nm High Brightness Red Laser Collimator
  • Howie Glatter 1.25-inch 635nm High Brightness Red Laser Collimator

  • This 1.25-inch 635nm collimator appears 2-3 times brighter to the human eye, which allows for collimation in higher levels of ambient light. read more...
  • Our price: $140.00

  • Howie Glatter 1.25-inch 650nm Standard Brightness Red Laser Collimater
  • Howie Glatter 1.25-inch 650nm Standard Brightness Red Laser Collimater

  • This collimator is recommended for use in 1.25-inch focusers and under subdued lighting conditions. read more...
  • Our price: $115.00

  • Howie Glatter 2-inch 635 nm High Brightness Red Laser Collimator
  • Howie Glatter 2-inch 635 nm High Brightness Red Laser Collimator

  • This 2-inch 635nm collimator appears 2-3 times brighter to the human eye, which allows for collimation in higher levels of ambient light. read more...
  • Our price: $175.00

  • Howie Glatter 2-inch 650nm Standard Brightness Red Laser Collimator
  • Howie Glatter 2-inch 650nm Standard Brightness Red Laser Collimator

  • This collimator is recommended for use in 2-inch focusers under subdued lighting conditions. read more...
  • Our price: $150.00

  • Howie Glatter Dual 1.25/2-inch 635nm High Brightness Red Laser Collimator
  • Howie Glatter Dual 1.25/2-inch 635nm High Brightness Red Laser Collimator

  • This is a one size fits all collimator features a 635nm laser that appears 2-3 time as bright to the human eye, which allows for collimation in higher levels of ambient light. read more...
  • Our price: $175.00

  • Howie Glatter Dual 1.25/2-inch 650 nm Standard Brightness Red Laser Collimator
  • Howie Glatter Dual 1.25/2-inch 650 nm Standard Brightness Red Laser Collimator

  • This is a one size fits all collimator for people owning both 1.25" and 2" focusers and willing to collimate in subdued lighting. read more...
  • Our price: $150.00

  • Howie Glatter 1.25 Inch TUBLUG
  • Howie Glatter 1.25 Inch TUBLUG

  • The tuBlug is a collimator accessory that allows Barlow collimation of the primary mirror from the back of the telescope. read more...
  • Our price: $75.00

  • Howie Glatter 1mm Aperture Stop
  • Howie Glatter 1mm Aperture Stop

  • 1mm aperture stop for Howie Glatter Laser Collimators. read more...
  • Our price: $15.00

  • Howie Glatter 2 Inch TUBLUG
  • Howie Glatter 2 Inch TUBLUG

  • The tuBlug is a collimator accessory that allows Barlow collimation of the primary mirror from the back of the telescope. read more...
  • Our price: $115.00

  • Howie Glatter 2" Blug
  • Howie Glatter 2" Blug

  • The Blug or Barlowed collimation plug is an accessory for collimators that allows Barlowed primary mirror alignment. read more...
  • Our price: $65.00

  • Howie Glatter Barlow Attachment
  • Howie Glatter Barlow Attachment

  • Get the most from your scope with a Howie Glatter Collimator equipped with the Barlow attachment. read more...
  • Our price: $35.00

  • Howie Glatter Blug 1.25" Blug
  • Howie Glatter Blug 1.25" Blug

  • The Blug or Barlowed collimation plug is an accessory for collimators that allows Barlowed primary mirror alignment. read more...
  • Our price: $40.00

  • Howie Glatter Holographic Concentric Circle Attachment
  • Howie Glatter Holographic Concentric Circle Attachment

  • Howie Glatter Concentric Circle Projection Attachment. A brighter pattern spanning 10 degrees, best for Cassegrain scopes slower than f/5.6 read more...
  • Our price: $35.00

  • Howie Glatter Holographic Crosshair and Circle Attachment
  • Howie Glatter Holographic Crosshair and Circle Attachment

  • Howie Glatter Holographic Cross-hair & Circle Attachment Useful for aligning the returning beam on collimator face. read more...
  • Our price: $35.00

  • Howie Glatter Parellizer
  • Howie Glatter Parellizer

  • Howie Glatter got it straight with his Parellizer. The only device able to truly center your accessories. read more...
  • Our price: $49.00

  • Howie Glatter Square Grid Holographic Attachment
  • Howie Glatter Square Grid Holographic Attachment

  • Howie Glatter's Square Grid Projection Attachment. A wide pattern spanning 21 degrees, best for fast scopes down to f/2.7 read more...
  • Our price: $35.00

  • Bob's Knobs for Meade SCTs LightBridge Secondary
  • Bob's Knobs for Meade SCTs LightBridge Secondary

  • Bob's Knobs for Meade LightBridge Dobsonian secondary mirror. read more...
  • Our price: $20.95

  • Bob's Knobs for Meade SCTs Meade 10" 3-screw
  • Bob's Knobs for Meade SCTs Meade 10" 3-screw

  • Bob's Knobs for Meade 10" SCT with 3-screw secondary mirror assembly. read more...
  • Our price: $16.95

  • Bob's Knobs for Meade SCTs Meade 10" 6-screw
  • Bob's Knobs for Meade SCTs Meade 10" 6-screw

  • Bob's Knobs for Meade 10" SCT with 6-screw secondary mirror assembly. read more...
  • Our price: $16.95

  • Bob's Knobs for Meade SCTs Meade 12" 3-screw
  • Bob's Knobs for Meade SCTs Meade 12" 3-screw

  • Bob's Knobs for Meade 12" SCT with 3-screw secondary mirror assembly. read more...
  • Our price: $16.95

  • Bob's Knobs for Meade SCTs Meade 14" 6 Screw
  • Bob's Knobs for Meade SCTs Meade 14" 6 Screw

  • Bob's Knobs for Meade 14" SCT with 6-screw secondary mirror assembly. read more...
  • Our price: $16.95

  • Bob's Knobs for Meade SCTs Meade 8" 3 screw
  • Bob's Knobs for Meade SCTs Meade 8" 3 screw

  • Bob's Knobs for Meade 8" SCT with 3-screw secondary mirror assembly. read more...
  • Our price: $16.95

  • Bob's Knobs for Meade SCTs Meade 8" 6-screw
  • Bob's Knobs for Meade SCTs Meade 8" 6-screw

  • Bob's Knobs for Meade 8" SCT with 6-screw secondary mirror assembly. read more...
  • Our price: $16.95

  • Bob's Knobs for Meade SCTs Meade 8" Schmidt-Newtonian
  • Bob's Knobs for Meade SCTs Meade 8" Schmidt-Newtonian

  • Bob's Knobs for Meade SCTs Meade 8" Schmidt-Newtonian secondary mirror. read more...
  • Our price: $25.95

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