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Celestron

Celestron CPC 800 XLT Computerized Telescope w/Tube and Tripod with NexYZ 3-Axis Universal Smartphone Adapter

    • Based on 116 reviews
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Style: CPC 800 GPS SCT


Set: W/ NexYZ adapter


Features

  • Item may ship in more than one box and may arrive separately
  • 8-inch Schmidt-Cassegrain telescope
  • NexYZ connects your smartphone to your telescope, spotting scope, binocular, monocular, and microscope so you can capture images and video through the eyepiece.
  • Works with a wide range of mobile phone models, including all the latest devices from Samsung, Google, and Apple.

Brand: Celestron


Focus Type: Manual Focus


Finderscope: Reflex


Compatible Devices: Smartphone


Date First Available: November 7, 2018


Country of Origin: Spain


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Top Amazon Reviews

    • Nice telescope!
Style: CPC 800 GPS SCT Set: Telescope
Update January 2018: I used this scope for the solar eclipse and have been photographing deep sky objects with a wedge. It's still going strong and working fine after I replaced the front cell. I've had a few issues with the GPS receiver that I've been able to resolve. I recently replaced the nylon ball bearings in the base of the mount with stainless steel bearings in order to get smoother tracking for astrophotography. Update March 2016 - Parts are difficult to obtain from Celestron!! I had an unfortunate accident with my telescope while setting up a outreach demonstration in a gym on a cloudy night. I forgot to tighten the thumbscrews that secure the scope to the tripod, and then tried to adjust the tripod! It was a dumb mistake and entirely my fault. I typically am more careful but guess I was in a hurry. The telescope fell and dented the front cell (the bezel that the lens cap attaches to). I've since tested the scope with an artificial star and found that the optics are still very fine! The collimation was off a bit but not by much. I added "Bob's knobs" and was able to get a nice diffraction pattern during the fine in-focus collimation adjustment. Celestron refused to sell me the front cell!! They offered the option of sending the scope back to the factory but it will take 20 to 40 days and cost an estimated $300. I don't mind the $300 so much, but don't want to be without the scope for a month as the weather is just getting nice and Jupiter is nicely placed! I continued bugging Celestron, and they reluctantly agreed to sell me the front cell. It wasn't too hard to replace and I collimated the optical tube. It's been working fine ever since! Update November 2015, a few months after purchase: =========================================== I'm still happy wit this purchase. This telescope has rekindled my interest in amateur astronomy and helped me to see the sky in a "new light". It's also been a hit with my neighbors when I've invited them to star parties. The GOTO feature is really useful and helps keep things moving. The tripod and telescope are a bit unwieldy to carry into the field, but that's subjective. It takes me about 15 minutes to unload the stuff from my car and set up at my favorite field not far from my home. I'd seen the planets before in my old 4.5" Newtonian scope that were OK, but have got some great views of the lunar eclipse, Saturn, Venus, and the moon with the CPC800 in the couple of months that I've owned it, and I'm dying to see Jupiter when it rises high in the night sky for me in the spring of 2016 (I'm not a morning person!). Meanwhile this CPC800 has helped me to discover the beauty of deep sky objects such as galaxies and nebulae. I say this with some trepidation because you shouldn't expect to run out and see images as you see them in magazines. The great ring nebula in Lyra for example, still looks like a small fuzzy doughnut. But it is resolvable and unmistakable in this telescope, whereas in my 4.5" Newtonian it was barely recognizable. Such objects will never look as you see them in a magazine because the human eye is not as sensitive as long exposure photography, and we're bound to do our observing from under a thick layer of atmosphere. Speaking of which, I'll note that I'm located in a rural area with low light pollution and at about 1000' above sea level. I've gained a new appreciation for how special and rare dark skies are. Pity the city-dwellers who cannot see the milk way! That's the way the ball bounces. I've started experimenting with astrophotography through this scope and have seen some colors in the nebulae through an inexpensive used DSLR camera from eBay. It's opened a whole new world for me but I see this as a specialized area that will take me a long while to master. One of the first things you'll run into with this Schmidt-Cassegrain scope as opposed to a Newtonian telescope is dew. Moisture in the air will condense on the corrector plate and end your viewing session before you're ready. It's inevitable. I made a primitive dew shield from flexible black foam craft sheets. This works well, is inexpensive, and buys you a couple of hours before the dew forms. I eventually constructed a 3-watt dew heater. These things can be easily purchased as well, but I like DYI when possible. Learning these things is a natural progression if you take this hobby seriously. Astronomy requires patience and endurance. Summer buzzing bugs - winter freezing feet - cloudy nights. But you'll be rewarded if you stick with it. Have fun! ... It's a very nice instrument. I'm happy with it so far. I've had better luck using the one-star alignment method by just pointing it to a known object than by using the three star alignment. One star alignment is pretty quick and gets me close enough to find other objects pretty well. The tripod is very solid. That tracking works well. Images are quite crisp with the supplied eyepiece. The controller is fairly intuitive, although it feels a bit dated with the menu-driven two-line LCD display. I found the power switch LED to be too bright as it shines up from the base pretty much into your eyes. I covered it with a piece of black tape. The underside of the tripod has six triangular cavities cast into the aluminum. I added red LED light strips in these compartments shining down on the accessory tray and found these to be very helpful. The light shines down onto the tray and not into your eyes since the LED's themselves are well hidden in the cavities. I power the telescope and other accessories (including the LEDs) from a 20 aH sealed lead acid battery that I carry in a canvas bag. I had a great time with this during the lunar eclipse star party on September 27th. The GOTO feature was extremely useful during the eclipse. As the skies darkened and stars started popping out, I could quickly slew to the ring nebula or Andromeda, and then easily slew right back to the moon to check its progress. The DC power connector has a locking ring that is supposed to engage with threads on the DC socket. It doesn't. Celestron used a DC socket with threads that don't protrude enough from the base. I find it a curious oversight. The correct socket is probably only worth a couple of bucks. I worry that the power cord might pull out and mess up my alignment, so I tie the cord through the handle on the fork. The finder scope inverts the image and has a non-illuminated reticle, and the adjustment screws protrude further than I would like. I found that they interfered with my piggyback camera mount. So I'm not really nuts about the finder scope. I've generally been pretty pleased with purchases on Amazon. However, this is the most expensive item I've bought from Amazon so far. In retrospect, I would buy it from another supplier. Amazon chose to ship this using a freight carrier from a warehouse about 1000 miles from me, which took about a week. It arrived on time and in good condition, but later I later discovered that I could have bought this from another supplier in a neighboring state who would have shipped UPS without charging sales tax. I probably could have received the telescope in two days instead of a week. It's a nice scope and expect to get years of enjoyment from it. ... show more
Reviewed in the United States on October 24, 2015 by DavidOrDave
    • Final (?) review
Style: CPC 1100 GPS SCT Set: Telescope
After all of the delays, messed up shipments, defective electronics etc. I finally was able to get the CPC 1100 out and was able to use it the way it was intended to be used. Despite rather poor weather with lots of haze and clouds, I set it up in my driveway for a quick test. Setting the scope is easy, but requires a strong back! The optical tube assembly (which includes the forks and drive system) is *heavy*. It goes around 65 pounds, and even when the scope is folded into transport position it is more than a handful. While the carrying handles (one on the side of one fork, the other under the bottom of the other fork) are well placed, it is still a very heavy object. If you have any sort of back problems, knee or hip issues, you are NOT going to be able to handle this thing by yourself. This scope is actually probably more than I really should be trying to handle by myself. Set up is simple. Just place the tripod in position and level it with the built in bubble level. Pick the scope up and rest it on top of the tripod. There is a center guide pin that slips into the base of the scope. Wiggle the scope around until the guide pin slips into place. Then push up one of the self-contained bolts on the base of the tripod and slowly turn the scope until the bolt hits the hole. Screw in the bolt, and the two others to secure the scope to the tripod. You need a 12 volt power supply for this scope (power cord with a cigarette lighter plug on one end is included). I'm using one of those automotive jump-start packs which should provide enough juice to keep the scope going for several hours. I went through the 3 star alignment procedure. Once turned on and you begin the alignment procedure, the scope's internal GPS takes a few minutes to acquire a signal and download the data it needs. Once it has done that, you can do the alignment, which is extremely simple. You use the slewing buttons on the controller to guide the scope to three different bright objects (they can be planets or stars). You don't even need to know what they are. Once the alignment is done, the scope is ready to go. After alignment, the scope worked flawlessly. Every object I selected from the menu on the controller appeared in almost the exact center of the field of view, requiring some tweaking occasionally, but pretty darn good considering I hadn't been real precise in aligning the thing. I looked at Jupiter first. Brilliant, crystal clear, sharp image, although small because the 40mm eyepiece only gives around 50x. Despite a considerable amount of haze and horrible light pollution, the view was excellent, with 3 moons lined up on one side of the planet and a 4th on the other side. After fiddling with the focus and as my eyes started to adjust, I could begin to make out some of the atmospheric bands on the planet. I went into the menu system, selected Messier objects and entered M42, the Orion Nebula. The scope slewed around quickly, came to a halt, and I looked through the eyepiece to find it almost perfectly centered in the field of view. The view was quite good considering the poor conditions we were having tonight. At a site that isn't surrounded by street lights and security lights, and with clear skies, it would have been stunning. Mars showed up crisp and clear. I tried adding my Tele Vue Barlow lens to increase power, but the atmosphere was too poor to let me get a good, crisp image. Unfortunately, I was working with only a small 'window' of sky that wasn't covered by clouds. Most of the deep space objects I wanted to look at were obscured. But Bode's Nebula (M81) was high in the sky, and even with the severe light pollution and, I discovered later, considerable dew forming on the corrector plate, I was just able to make out the ghostly image of that galaxy. So "first light" with the CPC 1100 was pretty successful, all things considered. Certainly the optics are wonderful. Even in the very poor conditions with high, wispy clouds, haze and severe light pollution, I was able to get some pretty impressive views of brighter nebula and galaxies. Pluses: Certainly the optics are wonderful. Crisp, clear, tack-sharp star images, beautiful low-power views of galaxies and nebula. The drive system seems pretty accurate. It almost always hit every object near to the center of the field of view. If I had taken more time to more accurately do the alignment it would have been spot on, I believe. Issues: Always issues, aren't there? First, of course, there's the weight. This is a heavy beast. If you are, like me, going to be out by yourself without anyone to help you lug the thing around, I would suggest you look for something less hefty. 65 pounds may not sound like much. Simply picking it up and setting it on the tripod isn't really the issue, it's moving it around, such as lugging it out of the house, getting it out of a car, etc. That's where things can get quite difficult. Second, vibration. Hands off, with just the drive tracking, it's fine, but if you reach for the focus knob, things are going to start to bounce around. Third: Focusing. Trying to focus this thing can be interesting, to say the least, and the vibrations set up by just touching the focus knob don't help. Tiny, almost microscopic adjustments are necessary. I'm not sure if this is an issue with all SCT type scopes or not, but it took me a while to get used to this, and I'm going to be looking into options to assist with focusing the thing. Fourth: The manual is outdated. The section on astrophotography, for example, discusses types of film to use, and pretty much no one has used film for astrophotography for years. While it is accurate as far as the basics are concerned, it needs to be updated. Fifth: The motors are very noisy when slewing at the higher rates of speed. When tracking or using the slower slew rates, you can't hear them at all, really. Sixth: All SCT type scopes are going to need to be collimated sooner or later. The secondary mirror mounted up by the corrector plate can be knocked out of the proper position for a variety of reasons. You need to turn a cover that hides the three collimation screws on the front of the scope, and somehow peer through the eyepiece, reach around the front of the scope with a screwdriver, make tiny, precise adjustments.... Well, I just don't see how it can be done without having an extra set of arms and a third eye on a flexible stalk. The scope is currently pretty well collimated right now, but I'm not sure how I'm going to adjust the thing with this setup. Again, I'm probably going to have to look into options to assist in that procedure, as I am with focusing. Do I recommend it? Well, that depends. So far I have mixed feelings about the scope, enough misgivings to keep me from giving it 5 stars. And I'm concerned about the drive system. This is the second unit I've had. The first failed right out of the box with an error indicating the controller couldn't communicate with the drive system. While Celestron sent me a replacement scope right away, a quick search on Google turned up the fact that I'm not the only person who had that particular issue. That makes me concerned about the overall reliability of the scope's electronics. But so far I'm pleased with the scope's performance. I can't wait to get it out to a really dark site on a clear night. ... show more
Reviewed in the United States on March 11, 2012 by Randall Krippner

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