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It is always possible for telescope optics to go out of alignment. Constant transport can mean the OTAs are subject to shocks, which can lead to the optical lens or mirror systems losing their collimation. In extreme cases, such misalignment can lead to a blurred image. That is why there are special eyepieces and laser units that can be used to bring the telescope’s optical system back into the correct state of collimation.

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Omegon Newton adjusting laser 1,25'' (inspection window)
Omegon
Newton adjusting laser 1,25'' (inspection window)
( 3.67 / 5 )
$ 59.00
ready for shipping in 24 h
Omegon Deluxe Collimation Eyepiece
Omegon
Deluxe Collimation Eyepiece
$ 39.90
ready for shipping in 24 h
Omegon collimation eyepiece
Omegon
collimation eyepiece
( 5 / 5 )
$ 59.00
ready for shipping in 24 h
noctutec Electronic collimator OCAL V3.0 MAX
noctutec
Electronic collimator OCAL V3.0 MAX
( 3 / 5 )
$ 369.00
ready for shipping in 24 h
Bobs Knobs Knobs for SkyWatcher Newtonian Secondary
Bobs Knobs
Knobs for SkyWatcher Newtonian Secondary
$ 48.90
ready for shipping in 24 h
Geoptik New Artificial star for Collimation and star test
Geoptik
New Artificial star for Collimation and star test
$ 130.00
ready for shipping in 24 h
TS Optics Collimation cap for Newtonian telescopes 1.25"
TS Optics
Collimation cap for Newtonian telescopes 1.25"
$ 6.90
ready for shipping in 24 h
noctutec Electronic collimator OCAL V2.0 PRO
noctutec
Electronic collimator OCAL V2.0 PRO
$ 217.00
ready for shipping in 24 h
Howie Glatter Laser pointers 635nm 1,25"
Howie Glatter
Laser pointers 635nm 1,25"
$ 359.00
ready for shipping in 24 h
Skywatcher Adjustment eyepiece Cheshire 1.25"
Skywatcher
Adjustment eyepiece Cheshire 1.25"
( 5 / 5 )
$ 46.90
ready for shipping in 24 h
Howie Glatter Laser pointers 650nm 2"
Howie Glatter
Laser pointers 650nm 2"
$ 660.00
ready for shipping in 24 h
Bresser Laser pointers 1.25"
Bresser
Laser pointers 1.25"
( 4 / 5 )
$ 82.00
ready for shipping in 24 h
Hotech Advanced CT laser collimator for 2" focuser with fine adjustment
Hotech
Advanced CT laser collimator for 2" focuser with fine adjustment
RRP:  $ 890.00
Our price:
$ 700.00
ready for shipping in 24 h
Howie Glatter Holographic Attachment for Laser Collimator - Concentric Circle Pattern
Howie Glatter
Holographic Attachment for Laser Collimator - Concentric Circle Pattern
$ 217.00
ready for shipping in 24 h
Bobs Knobs Knobs for C8 f/10 Secondary with Metric Collimation Screw Threads
Bobs Knobs
Knobs for C8 f/10 Secondary with Metric Collimation Screw Threads
$ 65.00
ready for shipping in 24 h
Howie Glatter tuBlug 1.25''
Howie Glatter
tuBlug 1.25''
$ 282.00
ready for shipping in 24 h
Bobs Knobs Knobs for C6 f/10 Secondary with Metric Collimation Screw Threads
Bobs Knobs
Knobs for C6 f/10 Secondary with Metric Collimation Screw Threads
$ 65.00
ready for shipping in 24 h
Hotech 1.25" SCA laser collimator - crosshair laser
Hotech
1.25" SCA laser collimator - crosshair laser
RRP:  $ 250.00
Our price:
$ 174.00
ready for shipping in 24 h
TS Optics Collimation Eyepiece for Newtonian Telescopes Concenter 2"
TS Optics
Collimation Eyepiece for Newtonian Telescopes Concenter 2"
$ 91.00
Product can be shipped as of 15.11.2024
Hotech 2" SCA laser collimator - crosshair laser
Hotech
2" SCA laser collimator - crosshair laser
RRP:  $ 304.00
Our price:
$ 240.00
ready for shipping in 24 h
TS Optics Ronchi eyepiece 1,25"
TS Optics
Ronchi eyepiece 1,25"
$ 55.00
ready for shipping in 3-7 days
Hubble Optics 5-star Artificial Stars
Hubble Optics
5-star Artificial Stars
$ 76.00
ready for shipping in 24 h
Bobs Knobs Rändelschrauben für Sekundärspiegel von Celestron SC EdgeHD 800
Bobs Knobs
Rändelschrauben für Sekundärspiegel von Celestron SC EdgeHD 800
$ 65.00
ready for shipping in 24 h
Baader Planetarium laser colli (collimation device for Newtonian and SC telescopes)
Baader
Planetarium laser colli (collimation device for Newtonian and SC telescopes)
( 4.33 / 5 )
$ 107.00
ready for shipping in 1-2 weeks
Bobs Knobs SCT 11" f/10 metric Fastar
Bobs Knobs
SCT 11" f/10 metric Fastar
$ 48.90
ready for shipping in 24 h
Skywatcher Laser pointers 1mW Red 1.25"
Skywatcher
Laser pointers 1mW Red 1.25"
$ 82.00
ready for shipping in 1-2 weeks
Celestron 1.25" Cheshire eyepiece (wire crosshairs with long collimation tube)
Celestron
1.25" Cheshire eyepiece (wire crosshairs with long collimation tube)
$ 65.00
ready for shipping in 1-2 weeks
Howie Glatter Laser pointers 635nm 2"
Howie Glatter
Laser pointers 635nm 2"
$ 590.00
ready for shipping in 24 h
Howie Glatter Holographic Attachment for Laser Collimator - Square Grid
Howie Glatter
Holographic Attachment for Laser Collimator - Square Grid
$ 195.00
ready for shipping in 24 h
Hotech HyperStar Laser Collimator 14"
Hotech
HyperStar Laser Collimator 14"
$ 980.00
ready for shipping in 6-10 weeks
Hotech 1.25"/2" SCA laser collimator - dot laser
Hotech
1.25"/2" SCA laser collimator - dot laser
RRP:  $ 239.00
Our price:
$ 218.00
ready for shipping in 24 h
Howie Glatter Laser pointers 532nm 1.25" & 2"
Howie Glatter
Laser pointers 532nm 1.25" & 2"
$ 1,060.00
ready for shipping in 3-6 months
TS Optics Knurled Screws M4 45 mm
TS Optics
Knurled Screws M4 45 mm
$ 26.90
ready for shipping in 1-2 weeks
Skywatcher Adjustment eyepiece Cheshire 1.25"
Skywatcher
Adjustment eyepiece Cheshire 1.25"
$ 21.90
Product can be shipped as of 15.11.2024
TS Optics Artificial Star LED collimator 2"
TS Optics
Artificial Star LED collimator 2"
$ 174.00
Product can be shipped as of 01.12.2024
Bobs Knobs Knobs for Newtonian 10” Primary
Bobs Knobs
Knobs for Newtonian 10” Primary
$ 38.90
ready for shipping in 24 h