315+ Telescopes Ranked

View Rankings

Orion SkyQuest XT6 Review – Recommended Scope

While the trend lately among most amateurs is to recommend a larger 8” (or even 10”!) Dobsonian to beginners, 6” f/8 Dobsonians like the Orion XT6 are still a great choice if you are on a budget or just not sure how much money you want to invest into the hobby starting out.
Photo of author

When you read one of my reviews at TelescopicWatch, you can trust that not only have I gotten to use the product, but I’ve compared it to numerous others and tinkered with it down to the literal nuts and bolts. When I'm not writing reviews, I'm out under the night sky with my own homemade or modified telescopes, with over 7 years of hands-on experience in astronomy, having owned 430 telescopes myself, of which 20 I built entirely.

Tested by

Score Breakdown

Optics: 5/5

Focuser: 3/5

Mount: 5/5

Moon & Planets: 5/5

Rich Field: 3/5

Accessories: 3/5

Ease of use: 5/5

Portability: 4/5

Value: 4.5/5

Read our scoring methodology here

The Orion XT6 is a great scope for beginners, albeit unfortunately not as well-accessorized as it really needs to be out of the box. While simpler and a little more lightweight than larger 8” offerings, there’s a good reason that many amateur astronomers today say the best 6” f/8 Dobsonian is an 8” f/6. That being said, the XT6 is still a great telescope if you’ve got weight constraints or a tight budget, and it’s a bit easier to take care of and get pristine views thanks to its f/8 focal ratio.

Orion SkyQuest XT6

How It Stacks Up

Ranks #3 of 22 ~$450 telescopes





Orion SkyQuest XT6


See All Telescopes' Ranklist

Best Similar Featured Alternative: Apertura AD6 Dobsonian is the best valued 6" freestanding manual dobsonian, and has everything better than what SkyQuest XT6 has, and at a better pricing.

What We Like

  • Decent amount of aperture
  • Easy to use and set up
  • 2” Crayford focuser

What We Don't Like

  • Other 6” Dobsonians with more accessories available at a lower price
  • Not really any more portable than an 8”
  • Only 1 eyepiece included
Recommended Product Badge

The XT6 is a great scope, but by the time you buy a few good accessories for it you could just get an 8” Dobsonian, which won’t take up any more space and delivers even more bang for your buck.

Reviewing the Optical Tube Of Orion XT6

Optical tube of XT6

The XT6 is a 6” (152mm) f/7.8 reflector with a focal length of 1178 mm, approximating a common standard of telescope for the past century. The reason the 6” f/8 has been so ubiquitous and is perhaps the perfect beginner’s telescope, is because it works. A 6” f/8 parabolic primary mirror is very easy to make, and the tube of a 6” f/8 is only 48” long, making it fairly portable and keeping the eyepiece at a comfortable height. Lastly, at f/8, there’s no need to worry about ultra-precise collimation or the aberrations caused by using inexpensive eyepieces. As with the XT8, the XT6 uses a plate glass primary mirror, not the BK7 or Pyrex primary mirror material found in many other full-sized Dobsonians. The difference in glass substrate has a negligible impact on cooldown time at this size.

The XT6 can be easily collimated, though adjusting the secondary mirror does require tools—namely, a small hex/Allen key. However, you’re unlikely to need to align the secondary mirror very often or at all. 

The newest incarnation of the XT6 finally sports a 2” focuser, and an all-metal Crayford unit at that. It uses a brass compression ring to grip your eyepieces, as does the 1.25” adapter, which also has T threads for installing a DSLR camera. The 1.5” secondary mirror is also big enough to fully illuminate the field of a low-power, wide-angle 2” eyepiece, unlike the smaller secondary mirrors in most other 6” f/8 Dobsonians. However, if wide views are what you’re looking for, a 6” f/5 tabletop scope will provide a wider field of view even with only a 1.25” focuser and at a similar cost.

About the Accessories

xt6 finderscope and eyepieces on a table

The XT6 comes with a single eyepiece – a 25mm Plossl providing 47x magnification. While nice, you do need a high-power eyepiece or two to get the most out of the telescope, which is, of course, an additional investment you should factor into your budget.

The included red dot finder works adequately, but a 9×50 finderscope or Telrad is a vastly better choice if you plan on doing much deep-sky observing. However, either is going to cost you some money that could also go towards another eyepiece.

A smartphone adapter is included with the XT6. It’s great for taking photos of the Moon. With some practice, imaging some planetary detail with a high-magnification eyepiece is possible – though inferior to a dedicated camera. However, a smartphone is much better for taking pictures through the XT6 than a DSLR is – and easier to use, too.

Lastly, the XT6 includes a collimation cap, which is really all you need to collimate this telescope. Our collimation guide explains in detail how to use one.

How Good Is The Mount?

The XT6 uses a fairly standard Dobsonian mount with plastic altitude bearings supported by Orion’s spring tensioning system, which prevents the scope from swinging around the sky when you swap out eyepieces or use heavy accessories on the front of the scope that would otherwise cause its balance point to shift. Besides attaching the springs, there is no additional setup required for the mount – just plop the scope on, attach the springs to their holders on the base and you’re ready to go. Like almost all Dobsonians, there are no clutches or slow-motion controls – just grab the tube and swing it around the sky. 

The XT6’s base is made from particleboard overlaid with melamine. Not only is it heavy, but if the melamine is damaged the whole thing will quickly warp and rot. Thankfully, you can easily make your own base out of ¾” plywood or buy one from a third party should this ever become an issue. However, provided you take care of it and don’t mind the weight the stock base is just fine and conveniently assembles out of the box in just a couple of minutes with the included Allen key and screws.

Should I buy a used Orion SkyQuest XT6?

There are XT6 units floating around that are close to 20 years old now – older ones have a 6×30 finder which is nearly useless, and a metal focuser that is arguably superior to the current one, but otherwise there have been no changes. Provided the mirror coatings are in good condition, there is little to go wrong with a used one. If the base is damaged or missing, it can easily be replaced with a homemade plywood one that requires just a few tools. Very old units have a sturdy metal 1.25” rack-and-pinion focuser; scopes made from around 2007–2021 have plastic 1.25” focusers which are easily damaged. However, all have good optics.

Alternative Recommendations

The Orion SkyQuest XT6 is certainly one of the best scopes available in its price range, and there is no better full sized 6″ dobsonian. However, you may want to consider a more compact tabletop Dobsonian or a larger 8-10” scope instead.

Under $500

  • Computerized Dobsonian Scope: The Sky-Watcher Virtuoso GTi 150P offers similar performance to the SkyQuest XT6 at a similar price, but it’s far more compact thanks to its tabletop design and collapsible tube, while the scope’s WiFi-controlled GoTo makes it extremely easy to locate targets as well as providing motorized tracking.
  • Manual Dobsonian Scope:The Sky-Watcher Heritage 150P is identical to the Virtuoso GTi 150P apart from its lack of motors or other electronics, and is a great budget-friendly option for a 6” telescope. Apertura AD6, introduced in early 2023, is currently the best full-standing dobsonian.


  • Manual Dobsonian Scope: The Apertura AD8/Zhumell Z8/Orion SkyLine 8 offers nearly double the light gathering power of the Orion SkyQuest XT6 and similar 6” Dobsonians but is hardly any heavier or bulkier. It also sports features such as a dual-speed Crayford focuser, built-in fan, and numerous high-quality provided accessories to get you started. The AD10/Z10 is hardly any more bulky and an equally great choice.

What can you see?

Even from the suburbs, a 6” telescope can be an absolute powerhouse.

Neptune’s moon Triton can be spotted, Saturn’s bands, Cassini Division, and several moons are easy, and Jupiter’s moons become disks rather than pinpoints. The smallest craters on the Moon visible are around a mile in size. Mars at opposition shows several dark markings and its ice cap.

The Orion Nebula begins to show a slight greenish coloring with a 6”, and globular clusters are somewhat resolvable. Many planetary nebulae, some showing a slight greenish or bluish tint, can be spotted. Under dark skies, M51’s spiral arms can be seen, along with several hundred other galaxies—a few dozen of which display considerable structure. But keep in mind that for deep-sky objects, your skies will be the limiting factor of what you can see. If you can’t see the Milky Way with your naked eye, galaxies are likely to be quite disappointing in the XT6, as only their oval centers are bright enough to be seen through strong light pollution. Globular clusters and open star clusters are, thankfully, significantly less affected but still somewhat affected by light pollution.

Optical Design:Newtonian Reflector
Mount Design:Altazimuth
Focal Length:1200mm
Focal Ratio:f/8
Focuser:1.25" Rack-and-pinion
Fully Assembled Weight:34.2 lbs
Warranty:1 year limited

Zane Landers

An amateur astronomer and telescope maker from Connecticut who has been featured on TIME magazineNational GeographicLa Vanguardia, and Clarin, The Guardian, The Arizona Daily Star, and Astronomy Technology Today and had won the Stellafane 1st and 3rd place Junior Awards in the 2018 Convention. Zane has owned over 425 telescopes, of which around 400 he has actually gotten to take out under the stars. These range from the stuff we review on TelescopicWatch to homemade or antique telescopes; the oldest he has owned or worked on so far was an Emil Busch refractor made shortly before the outbreak of World War I. Many of these are telescopes that he repaired or built.

3 thoughts on “Orion SkyQuest XT6 Review – Recommended Scope”

  1. I really appreciate your sincere advise, I am going to be more cautious now before making a choice.
    Thank you very much,

  2. The Orion SkyQuest XT6 is a great bargain bang for the buck yes it should include a 10mm e.p. and barlow2X and a finderscope also I wish all Dobsonian mounts had Alt azimuth markings or somebody should make kits available.


Leave a Comment