Celestron Omni XLT 127mm Schmidt-Cassegrain Telescope, 1250mm f/10 Focal Length with HD CG-4 German Equatorial Mount & 1.75" Steel Leg Adjustable Tripod

SKU: CNOMXLT127

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Questions & Answers

Shopper : what type of mirrors are used here, are they parabolic?Earl C : I really do not know. I looked at the specs and it does not say. I can say of what little I have used it the viewing is very crisp and clear. Maybe some one else will chime in on this.
Shopper : Which would be better choice for viewing the moon and astrophotography (sharpness and magnification), the Celestron Omni XLT 102mm or this Celestron Omni XLT 127mm Telescope?MARK H : I would go with the refractor - Omni XLT 102mm. Typically refractors give sharper views than telescopes with mirrors and you're not giving up a whole lot in aperture about 25%. Usually to judge equivalent apertures between refractors and telescope with mirrors((like XLT 127mm) add about 40% to the refractor. So a 102mm refractor would be equivalent to about a 140mm mirrored telescope(remember mirrored telescopes have an obstruction to reflect into the diagonal or eyepiece)
Shopper : Advise needed. First time buyer. Mainly viewing the moon and astrophotography. To folks who already own this telescope. How close and sharp the moon is and what should I purchase in addition to get the most and useful magnification out of this telescope? I do have T-adapter and T-ring. Thanks!KATHRYN H : I bought this telescope about a year ago and love it. It will give you excellent and very sharp views of the moon, provided you buy quality eyepieces and have good seeing in your area. I live in a very rural area with minimal light pollution so I have very dark skies. On nights for optimal moon viewing (when it is in partial phases), I can see fine details of craters and the moon's surface. I don't do any astrophotography so can't speak to that aspect. I bought two Televue eyepieces (1x Barlow and 13mm) and a set of Celestron eyepieces and filters with a variety of sizes/magnifications. All have worked very well for me with this telescope.WILLIAM K : I would get a f6.3 focal reducer, I couldn't get the entire moon in the frame without one, and it also changes the scope from f10 to f6.3 which helps when taking timed exposures. I also got a bahtinov focus mask, which makes focusing on stars much more precise.NATHANIEL M : This was also my first real scope. It is awesome for the moon. Look into some of the colored filters and possibly a slightly stronger eye piece if you want to get real close but don't over do it. The stronger magnification you have it gets very difficult to track and you start getting image degradation. Otherwise this is an awesome setup.

Reviews about this item

Review Summary

2024-05-29T09:49:33

Rated 4 out of 5

Celestron Omni XLT 102mm w/ EQ Mount

My first telescope and what a great one it is. The quality is robust. Its weight is reassuring as you set up and search the night sky, while also not giving me an excuse on a clear night to not set it up (I get lazy when things are difficult haha). I don't feel like I will be breaking it any time soon. The views are fantastic, and though there are chromatic aberrations, they do not deter from the viewing experience. My only issue is the finder. It's easily altered while stargazing and if you move the telescope too much, it's no longer synced with it. It's also completely mirrored horizontally and vertically so that takes getting used to as you find your target. I prepared for the future with the included equatorial mount as I plan to only be a stargazer. I like finding and tracking things myself and the mount does a great job! Future telescopes will work great on it!

Juan G.

2023-03-20T15:41:46

Rated 5 out of 5

Sturdy

I'm a beginner and love it

DALE R.

2022-06-06T10:13:51

Rated 4 out of 5

Fair for general use, great for Solar observation

For general use it is relatively capable, cheap, sturdy and easy to use and learn, well matched with the mount. Main negative is that it is achromat, you will see chromatic aberration in general use, for it rating is 3 stars. However, it is almost perfect for my specialist use - Solar observing in HAlpha and CaK lines. For it chromatic aberration is irrelevant and the combination of aperture and focal length is exactly where I need it with Quark filters&Apollo M camera while the mount provides all that is needed for this specific case.

DUSAN M.

2022-04-20T08:33:30

Rated 2 out of 5

Celestron XLT120 refractor

A lot of chromatic aberration. Minimal improvement of picture quality and planet details as compared to my old 2 1/2? refractor It only comes with one eyepiece.

MARKUS P.

2022-04-01T14:55:28

Rated 5 out of 5

CG-4 Equatorial German mount

Well built. Solid be quality. Very good price. Iam a quality inspector and this equatorial mount is solid. It's heavy and the tripod legs are thick. I am would definitely recommend any one who is looking for a good, affordable, well price, well built mount

RICARDO M.

2021-06-17T12:19:47

Rated 5 out of 5

Great scope!!

I love Adorama. The scope is perfect.

DAVID C.

2021-01-24T07:28:36

Rated 5 out of 5

Always Looking Up

Beautiful, sturdy, and easy to use. Get a large case, the tripod is heavy!

RONETTE W.

2020-10-28T19:44:22

Rated 5 out of 5

Outstanding Telescope!

We decided to step up from a basic telescope to something a little more powerful. Well, A LOT mpre powerful in this case! In my opinion, for the money, this is an OUTSTANDING purchase! Everything from the mount, to the telescope itself, to even the included eyepiece is excellent hardware. The tripod and moint alone are definitely worth every penny. The telet itself is a beautiful piece of hardware, os easy to use, and opens up the sky to sp mich more exploration! If you are looking for a telescope that is worthy of your hard-earned money, this is the one you'll want! A few notes: it only comes with a 25mm eyepiece. Get yourself a set of eyepieces when you order this. The documentation online is kind of lacking, but we found that the eyepiece on the telescope has a 2" adapter for dslr's or other cameras (we ordered the Celestron Universal Phone Mount). IT IS HEAVY! It comes in two boxes, you'll find that the tripod/mount is significantly heavier than the telescope. I have attached pictures, they were all taken by simply putting my phone on the eyepiece. The full view is with the 25mm that is included, the others are a 10mm with extension. With the COVID situation not improving, many people are getting into astronomy, and telescopes are very hard to find. Adorama is always outstanding to work with, i only had to wait a couple of weeks for the telescope to arrive and to be shipped.

Gary B.

2020-10-25T08:14:29

Rated 5 out of 5

Glad I bought it.

Great telescope. Great quality. Easy to set up , put together. Easy to use. Plus it looks awesome in the home.

Richard P.

2020-08-21T08:46:59

Rated 5 out of 5

Very happy with this purchase

I love the telescope. The tripod is a bit heavy and I have to take the telescope apart to carry it to the backyard. However, when it gets bumped it stays focused which is fantastic! I haven’t been able to see any deep space objects yet because I live in the city. I can see the cloud bands on Jupiter. I’m looking forward to taking it to the hills when the fires are out.

MARY E.

2020-02-18T15:42:21

Rated 4 out of 5

Nice Buy

Built like a tank. Optics seem to be good (not had a chance to use it much) can't wait to spend more time with this thing!!!!

MARK D.

2019-02-08T19:09:46

Rated 4 out of 5

Great scope for a great price!

Great scope! The tripod and mount are both heavy and sturdy. Getting the scope balanced with the counter weights and using slow motion controlls is easy. The optics are quite good for astrophotography or regular viewing. I have done prime focus and eye piece projection with this scope. Polar alignment is a bit tricky. It doesnt come with a polar scope, but the CG4 mount has a spot for one. Overall, im happy!

TINA B.

2018-07-15T10:38:25

Rated 1 out of 5

Impossible to give one yet, except for the mount and tripod.

I have yet to receive it! It's on back order! I did get the mount and tripod tho! The mount and tripod seem to be high quality. Very strong and stable! I've communicated with celestron and they have no idea when the manufacturer will complete the order. The good news is, I was only billed for the part I received. Last time I do business like this!

Gary P.

2016-08-08T09:50:27

Rated 5 out of 5

great scope and tripod

Quick delivery, well made scope and very well made equatorial mount. I do wish it had another eyepiece or a barlow, but now i get to buy better quality ones than normally ship with scopes of a lesser quality.

James R.

2015-12-26T17:25:15

Rated 5 out of 5

Awesome!

I'm having so much fun learning myself and teaching my grandkids. It's wonderful to see the little ones see the moon for the first time. I recommend this telescope to anybody.

CATHY W.

2012-10-29T21:00:00

Rated 5 out of 5

Great astrophotography starter

I got this scope with the intention of getting in to astrophotography and it blew away all my expectations. A couple things to note is that you will have to collimate this scope, and you will want the dual axis motor drive for photography. This is a great scope for the money and would buy it again in a heartbeat. The large aperture and short focal length make it a great candidate for viewing large low light objects.

Jon p.

2009-11-25T19:00:00

Rated 5 out of 5

Celestron Omni XLT 150 ED Refractor =Win

Easy to assemble and maintain, The mount is really stable. Refracting telescope is really Huge (6 inch objective lens). I was able to see fine detail on jupiters atmoshere (the belts and spot) using polarized filters at 107X, When atmoshere was quieter! Also saw Mars (ice cap) using special filters, Saturn's (on-edge) rings, Great telescope at Great price!

hec

2009-04-21T21:00:00

Rated 4 out of 5

Great telescope for the money

This is the first telescope I have owned, although I have been seriously stargazing for about a year (with 15X70 Binocs). Even from a VERY light polluted area (I live in the middle of a metro area with almost 2 million people), I am able to see a surprising number of deep sky objects. Clusters and larger nebula are easy, and even galaxies have been faintly visible, such as M81, M82, M104 and M94. The galaxies are hard to find because of light pollution and because I only have two eyepieces (4 and 25mm - a 9 is on the way!). But remember, this is viewing from a very urban, horribly light-polluted area. When I get this thing to a dark sky location, I have a feeling I will be absolutely thrilled! Very well constructed, super tripod. Magnificent views of the moon and Saturn! Very happy with the scope. Also very happy with Adorama so far, bought the scope and an eyepiece from them -[...]

Scoots

2009-02-20T19:00:00

Rated 5 out of 5

Affordable 5 " with Celestron quality

Needs some adjustment on equatorial mounting for a use in low lattitude location.

Panupong

2007-07-20T21:00:00

Rated 5 out of 5

My Best Scope Yet

I received my new Omni XLT 120 refractor about 3:00 pm Friday, July 20th. I set it up to get familiar with this scopes features. [...] First was the size, wow this is a large scope. The tripod and the mount especially the mount are quite heavy. This makes for a really stable platform. Considering the weight once fully assembled, slewing the scope was effortless. Just balance the scope as described in the manual. Note to Celestron: The box with the tripod and the box with the OTA both had manuals and software. The only problem I have to report is that I had to take apart the 1.25" star diagonal as the mirror was not positioned correctly. Two minutes to fix, no big. Also want to mention that the fine tuning knobs are so close together laterally on the mount and so large that they come into contact with each other. I will be getting flexible extender cables though for ease of reach, so again, no big. That night (last night) I took the new Omni out to the dark site ( two hours west of Chicago, Light pollution capital of the world ) to meet several astronomy club members and go for a test viewing. Another WOW! Everybody was impressed by the handling and optics. I have never seen the quarter moon so sharp and clear. Craters inside craters. The patterns of Jupiter were quite clear, after putting the light reduction cap on the lens though, as the light transmission is so strong. I was using eyepieces that are just to much for my 10" Dob; 5mm or 9mm on a 2X barlow. 25mm and 38mm really were the best for seeing open clusters. Even managed to spot that comet between Alkaid and Izar. This was my fifth or sixth viewing session with these new friends of mine and I saw more last night than all other nights put together. The Equatorial mount takes some study, but even so, try just looking for faint "fuzzies" through the finder scope and you might find M6, the "butterfly cluster," like I did. All in all an awesome scope for the price with great potential. I already have a wish list started.

Scanner E.

2007-03-25T21:00:00

Rated 4 out of 5

Best for your buck!

This is my first telescope purchase ever so I cannot compare it to anything else. The scope is great and the mount seems to be a perfect match. The construction was easy, you can tell how high quality everything is when putting it together. Everything fits so snug and seems very heavy duty. [...] First night out I saw orions nebula, very beautiful and the sliver of moon was gorgous also. Second night out I tried out the dual axis motors. No polar alignment and just rough north alignment using my eyes. I was amazed at the accuracy of these motors. I set my scope on saturn and used my 6mm w/ 2x barlow, engaged the motors, left for about 10 minutes. I was very surprised that when I came back saturn was still in my scopes view. Also, I purchased the Celestron accessory kit which I highly recommend. I purchased the 5 EP + barlow one which is great. I highly recommend this scope to any beginner wanting to purchase a quality scope that will last them a very long time. Soon I will be using this scope for beginner astrophotography. Can't wait!

Michelle

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About Celestron Omni XLT Telescope

FEATURED REVIEWS

Celestron Omni XLT 150 ED Refractor =Win

By hec

Easy to assemble and maintain, The mount is really stable. Refracting telescope is really Huge (6 inch objective lens). I was able to see fine detail on jupiters atmoshere (the belts and spot) using polarized filters at 107X, When atmoshere was quieter! Also saw Mars (ice cap) using special filters, Saturn's (on-edge) rings, Great telescope at Great price!

Great astrophotography starter

By Jon p.

I got this scope with the intention of getting in to astrophotography and it blew away all my expectations. A couple things to note is that you will have to collimate this scope, and you will want the dual axis motor drive for photography. This is a great scope for the money and would buy it again in a heartbeat. The large aperture and short focal length make it a great candidate for viewing large low light objects.

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

Key Features

  • StarBright XLT coatings provide maximized light transmission
  • 25mm multi-coated eyepiece, 20mm eye relief, 50 deg FOV
  • 1.25 star diagonal (except #31057)
  • Ball bearings in both axis of the mount for smooth performance
  • Easy no-tool setup
  • "The Sky" Level 1 planetarium software

What's in the box:

  • 25mm 1.25 " Eyepiece
  • 6x30mm Finderscope
  • 1.25 " 90-Degree Mirror Diagonal
  • Visual Back (1.25 ")
  • Dovetail Mounting Plate
  • Tripod and Accessory Tray
  • 4 lb Counterweight
  • 7 lbs Counterweight
  • 2-Year Warranty