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View the Latest Collimation & Focusing Tool Reviews
Item
Submitted By
Bob's Knobs for Celestron C8 f/10 Post-1980 Secondary with Standard Collimation Screw...
Agena Astro
I have always used Bobs Knobs. The best. But for this review its Agena's shipping the gets as always 5 big stars. I am 3000 miles away get stuff so fast it's mindblowing
I have always used Bobs Knobs. The best. But for this review its Agena's shipping the gets as always 5 big stars. I am 3000 miles away get stuff so fast it's mindblowing
Celestron 1.25" Cheshire Collimating Eyepiece for Newtonian Reflectors # 94182
Celestron 1.25" Cheshire Collimating Eyepiece for Newtonian Refle
Eyepiece worked fine once I figured out how to use it. The included instructions were a little vague to me, but I found some at Sky & Telescope.com. Product arrived within the promised time-frame, and was well packaged and in excellent condition...
Eyepiece worked fine once I figured out how to use it. The included instructions were a little vague to me, but I found some at Sky & Telescope.com. Product arrived within the promised time-frame, and was well packaged and in excellent condition...
Farpoint Bahtinov Focus Mask for Celestron 11" SCT # FP412
Perfect Focus
This allows you to get a good focus for imaging without using a computer.
It saves a lot of time.
This allows you to get a good focus for imaging without using a computer.
It saves a lot of time.
Farpoint Bahtinov Focus Mask for Celestron 11" SCT # FP412
10" Schmidt Cassegrain Bahtinov Mask
I had purchased a bahtinov mask for my 120 mm refractor, and it works GREAT. So well, in fact, that I decided to purchase the 10" mask for my SCT. I received the product in two days, tried it out, and it works GREAT on the SCT, too. Accurate foc...
I had purchased a bahtinov mask for my 120 mm refractor, and it works GREAT. So well, in fact, that I decided to purchase the 10" mask for my SCT. I received the product in two days, tried it out, and it works GREAT on the SCT, too. Accurate foc...
Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes
Great Value, Great Performance
I needed an artificial start to collimate the focus on my refracture, and the Hubble artificial star did the trick. I really liked having five point sources simultaneously available so I could pick the proper brightness to suit the job. Great product...
I needed an artificial start to collimate the focus on my refracture, and the Hubble artificial star did the trick. I really liked having five point sources simultaneously available so I could pick the proper brightness to suit the job. Great product...
Howie Glatter TuBlug - Barlowed Collimation Plug for Newtonian Telescopes - 1.25"
1 1/4" TuBlug
Excellent product. Well made. Works well.
Excellent product. Well made. Works well.
Howie Glatter 635nm High Brightness Red Laser Collimator - 1.25"
Perfect tool
Best made unit on the market.
Best made unit on the market.
Agena Extra M5 Base for Multi Reticle Reflex Finder with Type 0 Bracket
Agena M5 Base For Red Dot Finder (WO type)
I ordered two of these for my other scopes. Identical to the original that I already have. They have felt underlays to avoid marring the painted surfaces of your refractors. Excellent find and expediently delivered.
I ordered two of these for my other scopes. Identical to the original that I already have. They have felt underlays to avoid marring the painted surfaces of your refractors. Excellent find and expediently delivered.
Agena 1.25" Cheshire Collimating Eyepiece for Refractors
great tool
I was able to use this eyepiece to align a focuser that was out of alignment.
I thought I had to collimate the lenses but this eyepiece saved me the extra effort.
I was able to use this eyepiece to align a focuser that was out of alignment.
I thought I had to collimate the lenses but this eyepiece saved me the extra effort.
Howie Glatter Holographic Attachment for Laser Collimator - Concentric Circle Pattern
Glatter laser collimation tool
First rate piece of equipment.
First rate piece of equipment.
Celestron 1.25" Cheshire Collimating Eyepiece for Newtonian Reflectors # 94182
Agena Astro Cheshire
Well made with easy to follow instruction. This product made it simple to collimate my f/3.6 Schmidt-Newtonian reflector.
Well made with easy to follow instruction. This product made it simple to collimate my f/3.6 Schmidt-Newtonian reflector.
HoTech 1.25" SCA Laser Collimator - Single Dot
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...
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
A reasonably priced artificial star
This provided me with a satisfactory airy disk.
This provided me with a satisfactory airy disk.
Farpoint Bahtinov Focus Mask for Celestron 11" SCT # FP412
Work’s perfectly
Work’s perfectly
Work’s perfectly
Rigel Systems Aline 1.25" Telescope Alignment Eyepiece / Collimation Cap
Who needs a laser
Simplicity at its best. Well made, snug fit and dead simple.
Simplicity at its best. Well made, snug fit and dead simple.
Agena 1.25" Cheshire Collimating Eyepiece for Newtonian Reflectors
Agena 1.25 Cheshire Collimating Eyepiece for Reflectors
this Cheshire device is better than using a laser collimator
this Cheshire device is better than using a laser collimator
Hubble Optics 5-Star Artificial Star for Testing and Collimating Telescopes
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...
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" Cheshire Collimating Eyepiece for Refractors
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.
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" SCT # FP412
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.
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.
Jun 10, 2018
Farpoint Bahtinov Focus Mask for DSLR Camera Lens w/ 52mm Filter Thread # FP438
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...
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...
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