Customer Reviews

Celestron Collimation Eyepiece 1.25"

5 star:		(15)
4 star:		(2)
3 star:		(1)
2 star:		(0)
1 star:		(1)

 

 

Celestron's tool is easy to carry, easy to use, and (at least in my case!) gives me quick, precision collimation with my Newtonian. Why pay for a laser collimator (which needs to be calibrated) when you can use this?

Collimation is the most important part of your setup; without good mirror alignment, all you'll see are blobs and blurs even on the best viewing nights. This combination tool makes aligning both primary and secondary mirrors fairly painless, and also fairly fast. Highly recommended for any level of observer.

This thing works. Right out of the box I was able to line up my mirrors in less that an hour to textbook perfect diffraction rings on a star. It is the first real collimation my scope has had since I got it.

I bought a cheap Dobsonian over twenty years ago. Didn't use it much, had a couple of cheap eyepieces. It made pretty good images compared to other scopes but I was never sure of the collimation.

Fast forward to today when the internet allows people to communicate with each other! Read the reviews on collimators and the articles on collimation. This device is a consistent favorite. Cheap and effective, it goes right to the front of my new and improved eyepiece collection.

This will collimate most Newtonians with minimal effort. No laser beam is necessary. Follow the instructions.

This is a great item for the "regular guy" in astronomy. Sure there are more expensive options (laser) but if you're collimating your dobsonian with a friend there is no easier/cheaper way than this tool. I've lined up my 8 inch dob with this tool multiple times and it never fails. Love this piece. Makes up an essential part of my dobsonian toolkit.

Celestron did a great job with this item! The eyepiece showed that my collimation wasn't that far off from when I used the laser collimator (also by Celestron). The instructions were VERY EASY to follow if you read them close enough and carefully. I don't know what it is with publishers like Sky&Tel and die-hard amateurs...they have to explain how to use collimation equipment (and everything else) with wordy, techno-babble-filled descriptions that only confuse other amateurs (ahem...I've been an experienced amateur astronomer for over 25 years...so I know what I'm talking about). Maybe it's a way for the hot-shots to show off rather then be helpful. Save the techno-babble for another forum for those who really want to know. The instructions were written simple and to the point and only took up an index card's worth of explaining. I would definitely buy this item again and recommend it to beginners learning to collimate their reflectors.

It works fine. Takes a little getting used to it, but works like a charm.

I have one of these and I love it! It allows me to get my mirror alignment perfect. You don't have to worry about the Laser being off or any problems like that. This will allow you to get your collimation exactly dead on for the best image possible. Plus you don't have to worry about battery's running down.

Well, I have successfully collimated my small newtonian reflector with this little piece of equipment. At first it's tricky but you get the hand of it pretty fast. You just need to align all the reflections of the cross you see at the end of the tool. The first step is to align the secondary mirror so the cross aims at the center of the main mirror. Once that is achieved you can then adjust the main mirror to align everything together. Make sure you aim the telescope at a white light source so the cross is nice and visible. I aimed it at my tv with some white internet page, it did the job.

It might not be laser precision but it's more than enough for my reflector. I'm very satisfied with it.

I own a Celestron 10" Newtonian and used this tool to perform my very first collimation. I was pleasantly surprised when I saw it, it's very solid and well made, the pics don't do it justice because they make it look like it's made of plastic instead of sturdy aluminum. Since it was my first time I read the directions through twice before I used it, but the diagrams are very self explanatory. Once you collimate your telescope and get to know the procedure, it will only take a few minutes the next time. Overall, I'm very pleased with this purchase.

I tried for some time to collimate my reflector without any tools and found myself lost. The Celestron collimating eyepiece was just the right tool to make the job quite easy. I can check the collimation from time to time, and be sure it is right on. Good product.