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View the Latest Collimation & Focusing Tool Reviews

Item
Submitted By
HoTech 1.25
HoTech 1.25" SCA Laser Collimator - Single Dot
4.0
Good product overall
I have a couple of entry-level Newtonians (80mm & 130mm) & I used this to collimate them since that operation had never been done previously. Unit worked as advertised after I had marked the centers of the main mirrors (neither of these cheap...
Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes
Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes
5.0
A reasonably priced artificial star
This provided me with a satisfactory airy disk.
Farpoint Bahtinov Focus Mask for Celestron 11
Farpoint Bahtinov Focus Mask for Celestron 11" SCT # FP412
5.0
Work’s perfectly
Work’s perfectly
Rigel Systems Aline 1.25
Rigel Systems Aline 1.25" Telescope Alignment Eyepiece / Collimation Cap
5.0
Who needs a laser
Simplicity at its best. Well made, snug fit and dead simple.
Agena 1.25
Agena 1.25" Cheshire Collimating Eyepiece for Newtonian Reflectors
5.0
Agena 1.25 Cheshire Collimating Eyepiece for Reflectors
this Cheshire device is better than using a laser collimator
Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes
Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes
5.0
Works great!
Got my Hubble artificial star today and tried it out on both my C9.25 and my C11. Absolutely let me dial both right it and taught me some things about collimation and how movement of the scope from one side to the other effects collimation. I can’t...
Agena 1.25
Agena 1.25" Cheshire Collimating Eyepiece for Refractors
5.0
Works very well, the reflection
Works very well, the reflection is clear and well centered. I found that the crosshairs do get in the way, but they're very easy to remove by unscrewing the ring that carries them.
Farpoint Bahtinov Focus Mask for Celestron 11
Farpoint Bahtinov Focus Mask for Celestron 11" SCT # FP412
5.0
Perfect focus!
The mask fits well my 115mm scope. I have three FP masks for my three scopes--they are cheap and effective, and have survived some mishandling by me.
Farpoint Bahtinov Focus Mask for DSLR Camera Lens w/ 52mm Filter Thread # FP438
Farpoint Bahtinov Focus Mask for DSLR Camera Lens w/ 52mm Filter Thread # FP438
5.0
This thing just works!
I had purchased another mask/focusing aid from another online source where the pattern was etched (laser I presume) into clear acrylic. It then needed to be mounted into a square filter holder and attached to the lens. While it worked, this product i...
Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes
Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes
5.0
My thoughts on this product
Fantastic piece of equipment. This is much better for collimation of my SCT scope than a pinhole poked in a piece of paper or foil. It just works great. I did make a holder for it to keep it from rolling off an old photo tripod I use just for this p...
Howie Glatter 650nm Standard Brightness Red Laser Collimator - 1.25
Howie Glatter 650nm Standard Brightness Red Laser Collimator - 1.25"
5.0
BEST OF THE BEST
I tried cheaper laser collimators, with dissapointing results. The Glatter laser is a precision made instrument. If your serious about astronomy, use a Glatter laser collimator. Glatter lasers are not cheap, but you get what you pay for!
Howie Glatter TuBlug - Barlowed Collimation Plug for Newtonian Telescopes - 1.25
Howie Glatter TuBlug - Barlowed Collimation Plug for Newtonian Telescopes - 1.25"
5.0
MONEY WELL SPENT !!!
Yes, it is expensive. But, you get what you pay for! I use to use a cheshire collimator, and thought it was accurate. Was I wrong. The TuBlug, uses a barlow lens. The Barlowed technique of collimating the primary lens, is much more accurate. I now ...
Bob's Knobs for Celestron C8 f/10 Secondary with EdgeHD Optics # C8edg
Bob's Knobs for Celestron C8 f/10 Secondary with EdgeHD Optics # C8edg
5.0
they work
these are a life saver in the dark out in the field
HoTech SCA 1.25
HoTech SCA 1.25" Reflector Mirror for Advanced CT Laser Collimator
5.0
Works as designed
I added this 1.25" mirror to my kit so that I would have both size mirrors available if anybody in our club needed them. So far so good.
Agena 1.25
Agena 1.25" Side View Newtonian Laser Collimator with 2" Adapter
5.0
Simple and efficient.
Simple and efficient.
Farpoint 1.25
Farpoint 1.25" Reflective Cheshire Collimator
5.0
Good cheshire
Works well with stock round mirror markings too. Fast collimation 👌
Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes
Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes
4.0
Hubble Artificial Star
Needed to collimate a new C8 OTA that was pretty far out of center, probably due to being knocked about in transit. Much more convenient to do indoors with a little light than outside in the dark. Did inside warehouse at work on a Sunday, so had plen...
Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes
Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes
5.0
Works great, just need to
Works great, just need to be far away from telescope. A not in full sun, makes it hard to see the light. But works great when you can get the light far away and about twilight brightness.
Bob's Knobs for Celestron C8 f/10 Secondary with Metric Collimation Screw Threads (not for EdgeHD or Hyperstar) # C8met
Bob's Knobs for Celestron C8 f/10 Secondary with Metric Collimation Screw Threads (not...
5.0
Bob's Knobs
Tried collimating using stock Phillips head screws, very cumbersome. Bob's Knobs worked as advertised, quick and easy.