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Your cart is empty. "Fits in 1.25"" focusers and easy to use;simply cap the telescope, remove the diagonal, and place the eyepiece directly in the focuser.
For aligning optics of Newtonian reflectors, Dobsonian reflectors, and Schmidt-Cassegrain Telescopes (SCTs).
The short collimator for mirror (reflector) telescopes has a 45 degree plate for easier visual accuracy.
Item was made by aluminum with crosshair at the bottom allow quick and precise centering of the optics.
This collimation eyepiece can be used for precisely collimating the Newtonian and Schmidt-Cassegrain reflector telescopes for better image quality. "
Becky
Reviewed in the United States on August 20, 2024
I just finally got around to open this up to use it, and it isn't even centered. The cross wires are kind of bent inward, like they weren't tightened enough or something. I wish I would've checked it out as soon as I got it, cause it's too late to return now. Would've been better off to just stick to the cap.
IC1396
Reviewed in the United States on November 13, 2024
Sent me a returned one, or a used one, or one that failed manufacture's QA but somehow got into seller's hand.
Jo
Reviewed in the United States on June 21, 2022
I removed the center cross for collimation of refractor. Works great. Sticking some black tape to make a cross makes it easier to do the collimation alignment.
G
Reviewed in the United States on October 6, 2022
It has confirmed that my telescope is in perfect collimation. What else do I need?
Twin Seasons Vacations
Reviewed in the United States on May 1, 2021
This worked well to align and collimate a Newtonian reflector.
Bonnie
Reviewed in the United States on December 29, 2021
there is no brightness to this thing as it has no illumination. The cross hairs are accurate and that is what you need. So job well done.
Tim germaine
Reviewed in the United States on April 7, 2021
I used this to collimate my ES ED102 refractor. I simply removed the crosshairs by unscrewing them and took it out in the daytime and used the sunshine as the reflected light source to collimate my scope. The collimating image was very clear and easy to see the concentric circles. It took just a few minutes to get my scope in perfect collimation.Now I have images with perfectly round stars across the entire FOV.
T. Harward
Reviewed in the United States on October 1, 2020
Before I got this collimator I tried to make my own cap with a hole in the center and do it that way. I thought I had it pretty good, but I knew it wasn’t perfect—there were still imperfections in the image.As soon as I stuck this cheshire collimator on, the misalignment was perfectly obvious. I was able to see where the secondary was in the center of the focusing tube, and how the primary was off. It was then easy to align it perfectly. It only took 10 minutes start to finish — though mainly because I didn’t have to touch the secondary.The difference was immediately clear. No pun intended. Collimation appeared to be spot on, stars were perfect points, and the defocused star image looked nice and balanced and centered as expected.I’m not sure of the difference between a long and short cheshire, but the short seemed to work perfectly well. I did find it a little easier to see the alignment by focusing all the way out, but that’s all it took.Really, this is so easy and perfect that I can’t imagine needing a laser collimator (though I’ve never tried one). I would skip the laser and just use this, it’s cheaper and works great.
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