# Best Collimators for Razor-Sharp Optics (2026) Source: https://stargazernest.com/best/collimators Updated: 2026-09-15 Publisher: Stargazer Nest. Our score is an editorial rating out of 10 (fit 35%, features 25%, build 20%, value 20%), not a customer rating. Method: https://stargazernest.com/how-we-research#our-score Collimation aligns your telescope's mirrors so stars focus to tight points, and the right tool depends on your scope. Laser collimators are fast and work in the dark but need to be well collimated themselves to be trusted. Cheshire eyepieces and sight tubes use daylight and never drift, making them a reliable reference. Check that the tool fits your focuser barrel size and suits your design, since Newtonians, SCTs, and refractors each have different alignment needs. Collimators suit owners of Newtonian reflectors, which drift out of alignment with handling and transport, and anyone chasing the last bit of planetary sharpness. A practical tip: a Cheshire and a laser complement each other well. Use the Cheshire to set the secondary mirror accurately, then the laser for quick primary tweaks at the eyepiece before an observing session, and finish with a star test to confirm the result. ## Picks ### 1. HoTech 2 and 1.25 inch SCA Laser Collimator for Newtonian Telescope Crosshair SCA-2C Our score: 9.2/10 (Fit for the job 10/10 · Features and specs 9/10 · Build and materials 9/10 · Value 8/10) HoTech SCA-2C laser collimator with crosshair, fitting 2 and 1.25 inch focusers for precise Newtonian alignment. Pros: - Self-centering adapter design reduces errors caused by loose focuser fit - Fits both 2 and 1.25 inch focusers without a separate adapter - Crosshair pattern gives a clearer alignment reference than a single dot Cons: - Considerably pricier than basic laser collimators - Crosshair method has a small learning curve for first-time collimators Details: https://stargazernest.com/product/B005DMUCV2 ### 2. SVBONY Red Laser Collimator for Newtonian Telescope Alignment 1.25 inch 7 Bright Levels Our score: 8.4/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 7/10 · Value 9/10) SVBONY red laser collimator for Newtonian telescope alignment, 1.25 inch, with 7 bright levels. Pros: - 7 bright levels help match laser brightness to your viewing conditions - 1.25 inch barrel fits standard focusers without extra adapters or spacers - Laser collimation makes Newtonian alignment quick and simple Cons: - Laser must itself be collimated for accurate results - Laser alignment alone may not be as precise as a Cheshire eyepiece Details: https://stargazernest.com/product/B00LX34ZH2 ### 3. Astromania Laser Collimator for Newtonian Dobsonian Telescopes 1.25 Inch 7 Red Laser Bright Levels Our score: 8.4/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 7/10 · Value 9/10) Astromania 1.25 Inch laser collimator for Newtonian and Dobsonian telescopes with 7 red laser brightness levels. Pros: - 7 brightness levels let you dim the beam for night work or boost it for daytime setup - Made with Newtonian and Dobsonian owners in mind, where collimation matters most - Laser dot makes it quick to see secondary mirror tilt without squinting down the tube Cons: - Budget lasers can be slightly off-axis themselves, so check it by rotating in the focuser - Focuser slop can shift the beam, giving misleading results on loose drawtubes Details: https://stargazernest.com/product/B01D8HMBCQ ### 4. Celestron 94182 Cheshire 1.25 inch Collimation Eyepiece, Black Our score: 8.3/10 (Fit for the job 9/10 · Features and specs 7/10 · Build and materials 8/10 · Value 9/10) Celestron 94182 Cheshire 1.25 inch collimation eyepiece in black, a simple non-electronic alignment tool. Pros: - Cheshire design needs no batteries and never goes out of alignment itself - Shows primary and secondary mirror alignment together for accurate results - Celestron build fits snugly in standard focusers Cons: - Requires some light in the tube and practice to interpret the view - Slower to use than a laser, especially for complete beginners Details: https://stargazernest.com/product/B00009R7RJ ### 5. Astromania 1.25 Inch Metal Collimating Cheshire Eyepiece Without Laser for Newtonian Reflector Our score: 8.3/10 (Fit for the job 9/10 · Features and specs 7/10 · Build and materials 8/10 · Value 9/10) Astromania 1.25 Inch metal collimating Cheshire eyepiece without laser for Newtonian reflector telescopes. Pros: - Metal body is durable and holds its shape over years of use - Laser-free design avoids calibration problems common with cheap lasers - Precise enough for fast Newtonians that need careful alignment Cons: - Needs daylight or a light source to see the reflections clearly - Beginners may find reading the Cheshire view confusing at first Details: https://stargazernest.com/product/B01DEW8VLA ### 6. SVBONY SV197 Collimating Cheshire Eyepiece 1.25 Inch for Newtonian Reflector Telescope Our score: 8.1/10 (Fit for the job 9/10 · Features and specs 7/10 · Build and materials 7/10 · Value 9/10) SVBONY SV197 collimating Cheshire eyepiece, 1.25 Inch, for aligning Newtonian reflector telescopes. Pros: - Passive Cheshire tool gives dependable, repeatable collimation results - Budget price makes it easy to keep alongside a laser collimator - Works day or night with no electronics to fail Cons: - Interpreting rings and reflections takes a few tries to master - Check the sight tube length, since it affects centering the secondary Details: https://stargazernest.com/product/B092ZW9X9M ### 7. Alstar Red Laser Collimator for Newtonian Telescopes 1.25 inch 7 Brightness Levels Our score: 7.6/10 (Fit for the job 8/10 · Features and specs 8/10 · Build and materials 6/10 · Value 8/10) Alstar red laser collimator for Newtonian telescopes, 1.25 inch, with 7 brightness levels for easy alignment. Pros: - 7 brightness levels suit both indoor practice and dark observing sites - Standard 1.25 inch body fits most Newtonian focusers directly - Affordable way to speed up routine collimation before sessions Cons: - Lesser-known brand, so laser self-alignment should be verified on arrival - Does not include a 2 inch adapter for larger focusers Details: https://stargazernest.com/product/B077GRYCK8 ### 8. Gosky Universal 1.25 Inch Collimation Eyepiece for Newtonian Telescopes with Cross Hair Our score: 7.6/10 (Fit for the job 8/10 · Features and specs 7/10 · Build and materials 7/10 · Value 8/10) Gosky universal 1.25 Inch collimation eyepiece with cross hair for Newtonian telescope alignment. Pros: - Cross hair helps center the secondary mirror accurately - Universal fit works in most Newtonian focusers - Simple tool with no batteries or calibration needed Cons: - Collimation cap style tools are less precise than a full Cheshire for fine tuning - Instructions for beginners may be minimal Details: https://stargazernest.com/product/B07K1W31HJ As an Amazon Associate I earn from qualifying purchases.