It only goes in one way, so this little “gremlin” kind of surprised me when the finder+bracket abruptly fell off and hit the thick carpet of the living room floor! A very nice heavy plastic dust cover is provided to seal the front end of the lower OTA when it is being stored, and a second one is also provided for the upper OTA section when the entire optical tube portion of the telescope has been assembled but is being stored or protected when not in use. Then, go to the opposite side of the tube and connect the truss on the other side to the upper OTA, but again, KEEP IT LOOSE! Reviewed in the United Kingdom on February 7, 2016. Putting the scope on some stars and cranking the power a bit more showed easily visible spherical aberration and clear signs that the mirror was undercorrected (ie: not enough glass removed from the middle portions of the mirror during figuring). I’m more of an avid telescope user than an amateur astronomer (I … The scope includes a little eyepiece “cap” with a small center hole, but this is definitely not enough for a big f/4.6 scope. The segments will be described separately. Mirrors On the Bench: The nagging suspicion that the primary mirror of the XX14i might not be quite “diffraction limited” brought back painful memories of another time 25 years earlier when I got “saddled” with a rather bad 2nd-hand Coulter 10 inch f/5.6 mirror. The fit of the lower OTA into the mount can get a little wonky, in that sometimes it is possible to get the scope into the rocker box but not properly settled on the actual bearings. To Orion's credit, they did offer me the option to send the entire telescope back for a refund (minus the shipping charge), but I told them to send me the original mirror and I would deal with the problem myself. The interior of the tube is not quite as dark as it might be, so I would recommend some sort of covering over the trusses to keep light out. The main ones were: it is a little heavy, the upper tube assembly can be a little awkward to attach to the trusses, and the primary mirror was. Now 3-elements probably isn't really enough to properly deal with a f/4.6 light cone. I had to exert myself a bit to lift the entire mount intact out the front door and to my driveway. It was a bit of a headache to install all eight screws to connect the primary mirror cell to the lower OTA (why not just six screws?? The azimuth movement was smooth but took notably more force to make the scope move in azimuth than with the altitude axis. The 14" dobsonian's aperture is truly vast giving you mind blowing vistas of the night sky. Overall the telescope is quick & easy to set up (about 15 min) and great fun to use. You have to set up the scope vertically at the start so that it points towards the zenith, and then, you are given two stars to find as alignment stars. The edges were very sharp and clean, with no signs of flaking, and all of the holes drilled into the material were smooth. The eyepieces included with the XX12i are a bit of a token effort. Please re-enable javascript to access full functionality. They are a 2” 3-element 35mm “EasyView” eyepiece and a 10mm 1.25” Plossl. The Ronchi grating in particular showed some mild but definite curvature of the bands, especially towards the outer portions of the mirror. The edges were very sharp and clean, with no signs of flaking, and all of the holes drilled into the material were smooth. Once again, as we set the tube into the rocker box, the thing got skewed a few times and we banged one of the tube's attached shafts against the disk of the altitude encoder more times than I would like (it is a little fragile). Its open end is, I was a little surprised to see two eyepieces included with the scope, as many big Dobs come with none. The upper “rocker box” section of the mount also can be easily broken-down into three smaller fairly flat segments for more compact storage. Orion's optional rather “stretchy” shroud (a big elastic black thing) is a bit on the pricey side ($80), but it works fairly well. This pack is equipped with a strip of Velcro so that it can be attached wherever it is convenient. Unlike some Dobsonians, the telescope tube cannot completely swing through the fork on past the zenith due to the restrictive nature of the rocker-box, which is only open on one side. The tube assembly with its large plastic altitude shafts is supported on the mount on four small round plastic knob-like bearings that are located inside of the forks of the rocker box rather than being part of the “open-faced” designs that Orion usually uses. It weighs a little over nine pounds and has construction similar to that of the lower OTA section with thick metal end ring castings and the attach points for the trusses. Sometimes a choice of a slightly smaller aperture can reap big rewards as far as the amount of use you might get from a given instrument. Product Description: The XX14i is a 14 inch aperture f/4.6 Newtonian with a modified truss-tube on an altazimuth mount. The Dobsonian revolution triggered the creation of number of larger aperture altazimuth Newtonian telescopes that have pushed amateur observing to limits unheard of just a couple of decades ago. The forward end has angular attach point fittings for the truss tubes, while the aft end is an integrated mirror cell/aft end ring, containing the primary mirror, three detachable counterweights, and a cooling fan. This sent up alarm bells all over. Very well build. Orion SkyQuest XX12i IntelliScope Reviewed ... Orion’s XX series of Dobsonians offers both IntelliScope and GoTo truss Dobsonians at an affordable price point. The dabsonian mound is made of laminated wood. It's a huge mashine. Top subscription boxes – right to your door, Orion 10024 SkyQuest XX14i IntelliScope Truss Dobsonian Telescope, See all details for Orion 10024 SkyQuest XX14i IntelliScope Truss Dobsonian Telescope, © 1996-2020, Amazon.com, Inc. or its affiliates. Thus, those considering this scope for use in an enclosure like a dome would be best to consider one at least 10 feet across for good clearance. The Mount: As with many of the Orion Dobsonians, this is also a simple altazimuth rocker-box mount made mostly of hard “composite wood” material that has a very good black laminated finish. The unit does shut itself off after 50 minutes of non-activity to prolong battery life, and if it turns off, you have to go through the complete alignment routine from scratch once again. OTA Upper tube Section: This portion is 16.5 inches across, 8.25 inches high, and contains the focuser, finder scope mount, spider, and secondary mirror. You have to set up the scope vertically at the start so that it points towards the zenith, and then, you are given two stars to find as alignment stars. I might suggest just a dark cloth that unrolls and then attaches to the outside of the trusses using cloth loops or Velcro, but if you don't want to do this, there is always the Orion shroud. M31 was a whole new galaxy with loads of light and dark detail that I had previously noted only in photographs. Some of this can be explained by the better figure of John's custom (1/20th wave p-v) mirrors, so it was to be expected. The telescope's aperture is simply massive giving you incredible views of deep space where you will see spectacular reds and blues from nebulae, impressive spiral armed galaxies and details on the rings of Saturn. 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