--- product_id: 725315895 title: "SkyWatcher Flextube 300 SynScan Dobsonian 12\" Folding Computerized GoTo Large Aperture Telescope (S11820)" brand: "sky-watcher" price: "€ 14125.55" currency: EUR in_stock: true reviews_count: 5 url: https://www.desertcart.de/products/725315895-skywatcher-flextube-300-synscan-dobsonian-12-folding-computerized-goto-large store_origin: DE region: Germany --- # Built-in WiFi for smartphone/tablet control 12" large aperture for bright, detailed views All-metal gears for precise, durable tracking SkyWatcher Flextube 300 SynScan Dobsonian 12" Folding Computerized GoTo Large Aperture Telescope (S11820) **Brand:** sky-watcher **Price:** € 14125.55 **Availability:** ✅ In Stock ## Summary > 🌌 Fold, connect, and conquer the cosmos with Sky-Watcher’s ultimate GoTo Dobsonian! ## Quick Answers - **What is this?** SkyWatcher Flextube 300 SynScan Dobsonian 12" Folding Computerized GoTo Large Aperture Telescope (S11820) by sky-watcher - **How much does it cost?** € 14125.55 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/725315895-skywatcher-flextube-300-synscan-dobsonian-12-folding-computerized-goto-large) ## Best For - sky-watcher enthusiasts ## Why This Product - Trusted sky-watcher brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Portability:** Innovative foldable tube design reduces size by 36%, making transport and storage a breeze without losing optical alignment. - • **Complete Ready-to-Use Kit:** Includes premium 10mm & 25mm eyepieces, 9x50 finder scope, and 2" Crayford focuser—everything a serious astronomer needs right out of the box. - • **Rock-Solid Precision Tracking:** Durable all-metal gear servo motors ensure smooth, accurate automatic tracking for hours of uninterrupted observation. - • **Unmatched Aperture Brilliance:** Experience stunningly bright and sharp celestial views with a massive 12-inch primary mirror, rivaling professional setups. - • **Smartphone-Controlled Stargazing:** Seamlessly connect via built-in WiFi to your device and navigate 42,000+ celestial objects with the intuitive SynScan GoTo system. ## Overview The Sky-Watcher Flextube 300 SynScan Dobsonian is a cutting-edge 12" large aperture telescope featuring a unique foldable optical tube for easy transport, built-in WiFi for smartphone control, and precise all-metal geared motors. With a 94% reflective borosilicate mirror and access to a 42,000-object database via the SynScan hand controller, it offers professional-grade stargazing in a portable, user-friendly package complete with essential accessories. ## Description Sky-Watcher's GoTo Dobsonian symbolizes Sky-Watcher's dedication to innovative ideas. Combines our unique collapsible optical tube design with the convenience of a computerized GoTo mount. The SynScan hand controller allows the user to point the telescope to a specific object or explore the night sky with the push of a button. Most astronomers desire the large aperture of the Dobsonian telescope, but it can be frustrating for some users because it lack of computerized GoTo functionality. Sky-Watcher has done this by adding motors to a traditional Dobsonian base, giving astronomers the benefits of a computerized GoTo system. Sky-Watcher's signature SynScan hand controller allows for quick and easy setup using two easy alignment methods, "bright star alignment" or "2-star alignment". The SynScan hand controller can point to over 42,000 objects including a complete catalog of Messier, NGC and IC objects, giving you a lifetime of astronomical observation. Dobsonian telescopes are known for their low cost and large aperture, but often sacrifice portability. GoTo Dobsonian solves this problem using a dedicated foldable optical tube. Features a strut system with three 1" steel poles and chrome lock screws. The strut system uses preset indentations to position optics in the same position many times and maintain the perspective. Unlike other Dobsonians that use Truss Tube systems, Sky-Watcher's GoTo Dobsonian optical tubes do not need to be disassembled before transporting them from one location to another. Folds up to 36%, this optical tube is easy to carry around in the back seat of most vehicles. At the heart of every Skywatcher telescope is a professional-grade optics. GoTo Dobsonian is no exception. We use a borosilicate mirror coated with quartz, titanium and silicon dioxide. This provides an amazing 94% reflectivity, vivid contrast, minimal vignetting for an exceptional viewing experience. Unlike other manufacturers, Sky-Watcher has the principle of providing all the accessories you need to get started. The 8", 10", and 12" GoTo Dobsonian comes with a 2" Clayford style focus, a 1.25" adapter and two 1.25" eyepieces (10mm and 25mm). Whether it's your first telescope or not, there's enough accessories for all kinds of astronomers Review: Yes, it is big, yes it is awesome. Now for all you fans, something I did not know. Upon opening the box, the first piece of paper slipped out and indicated , "by the way your Sky-Watcher has built in Wi-Fi." I did not know they had started doing this. I almost bought the Wi-Fi dongle with the scope. I did not have a lot of time with the scope before skies stopped cooperating. I never even used the hand control, just my phone. Fantastic. The pic of the Orion Nebula was just with me trying to line up the phone with the eyepiece, we know that isn't easy, but time was an issue. In any case, the thing kicks butt and has its own Wi-Fi, not networkable, but just connect with phone. I love you Sky-watcher, you're my only scope. Edit. Many folks ask about tracking for astrophotography. Added last pic of Orion with my Pixel with 1:20 minutes exposure. So yes you can do some exposure, but probably not more than 30 sec. Re-edit. Has issues with the drive. Skywatcher support was quick and helpful and sent new base. Very hard to find that type of customer support. Good job! Review: I am very sorry to leave this rating, as I think it is somewhat unfair, but I can't see doing better just yet. I start by noting that I am a professional astronomer, with years of observing experience with Celestron and Meade scopes, and I even teach laboratory astronomy courses. I'm extremely familiar with the alignment and use of Go-To telescopes. I bought this scope because I wanted a good light-bucket, that could reach further than my 8" catadioptrics. I don't do astrophotography, but a Go-To drive was essential as I've long since gotten star-hopping out of my system. The telescope arrived, and was an easy assembly. Collimation of the secondary and preparation for observing was straightforward. Optical tests showed that it was perfectly consistent with my 2" Ethos eyepieces, with no vignetting, which was really sweet to see. Also, optical tests on bright stars and the moon showed that the image quality of the optics was really great. Then...came the final test...star alignment. Alignment was straightforward on paper, and not to dissimilar to the methods used for Celestron and Meade 8" cats. I opted for two-star alignment, used the hand paddle to move the scope easily from star #1 to star #2. Alignment was declared complete. I tasked the scope to see M27, a fave object, as my "first light" detection. And....nothing. I tasked the scope to go to Vega, and instead I found myself looking at epsilon Lyrae, about 100' off target. So....I realigned, using Altair as star #1 and Capella as star #2....alignment successful, so the paddle declared. I tasked the scope to look at Albireo...again, about 100' off. I tasked it for Capella, which it found, but then it could not refind Altair. I rebooted the scope from a cold start, tried a third time. Same failure. Then, I rebooted the scope, tried "bright star alignment," and got similar bad results. The next clear night, I tried again, after having messaged with customer service at Skywatcher (they got back within 24 hours). I carefully (using a bubble level and compass) made sure my initial configuration of the scope was as required by the manufacturer. I also checked to see if NPE and CE values were set to zero--they were. But still no success in aligning the scope. I wanted to try more tests, but my grace period to return the scope was running out (it's the rainy season in NorCal, and clear nights are rare), so I had to return the scope. I am thankful I fastidiously saved ALL PACKING MATERIAL, bags, etc, so I could avoid a charge from the seller (Adorama). I steeled myself for a battle, as I was afraid Adorama would argue that I somehow damaged the scope, but they did not provide pushback. I intend to repurchase this scope in the summer, when I have more time to check it out. The scope looks really good, and users of the scope on social media tell me that the behavior of the scope I get was abnormal. ## Features - Large Aperture: Get a bright and bold viewing experience at a fraction of the cost of other optical designs - INNOVATIVE FOLDABLE DESIGN: Unique strut design allows the optical tube to be folded and carried easily while maintaining collimation - BUILT-IN WIFI: Control your telescope with your smart phone or tablet with Sky-Watcher's unique WiFi signal - ALL METAL GEARS: One pair of DC servo motors use all metal gears The SynScan Dobsonian combines precise automatic tracking of a computerized GoTo telescope with a bright, large-aperture view of Dobsonian - 94% REFLECTIVE MIRROR: Fully multi-coated borosilicate primary mirror and secondary mirror provide excellent vision - 42,000 Object Database: With over 42,000 object database, SynScan hand controller is busy with countless observation nights, even experienced astronomers - Complete: Includes all accessories including 2" Crayford style focusing with 1 1/4" adapter, 2 super wide angle eyepieces (25mm and 10mm), 9x50 straight through finder scope - STURDY & LIGHTWEIGHT DESIGN: When fully assembled, Dobsonian weighs only 100 lbs (46 lb tube, 55 lb base) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00Z4HVMHO | | Brand | Sky-Watcher | | Built-In Media | 10mm Prosl, 25mm Prosl, 9x50 Finder | | Coating | Reflective Mirror | | Compatible Devices | Smartphone, Tablet | | Customer Reviews | 3.8 3.8 out of 5 stars (18) | | Eye Piece Lens Description | Super Plossl | | Finderscope | Reflex | | Focal Length Description | 1500 millimeters | | Focus Type | Auto Focus | | Global Trade Identification Number | 00050234118200 | | Item Dimensions D x W x H | 106.7D x 71.1W x 53.3H cm | | Item Type Name | Reflective | | Item Weight | 6.21 kg | | Manufacturer | Sky-Watcher | | Manufacturer Part Number | S11820 | | Model Name | Sky-Watcher GoTo Folding Dobsonian 12" (305mm) | | Model Number | S11820 | | Mount | Platform | | Objective Lens Diameter | 305 Millimeters | | Power Source | Adapter | | UPC | 050234118200 | | Zoom Ratio | 12 | ## Product Details - **Brand:** Sky-Watcher - **Eye Piece Lens Description:** Super Plossl - **Model Name:** Sky-Watcher GoTo Folding Dobsonian 12" (305mm) - **Objective Lens Diameter:** 305 Millimeters - **Telescope Mount Description:** Platform ## Images ![SkyWatcher Flextube 300 SynScan Dobsonian 12" Folding Computerized GoTo Large Aperture Telescope (S11820) - Image 1](https://m.media-amazon.com/images/I/51zusscKa7L.jpg) ## Questions & Answers **Q: These all show optic viewers, can they be connected to tablets / smart phones etc.?** A: Yea, you can just have a camera directly hooked up to the scope (without using an eye piece) and then have the camera hooked up to a laptop or tablet or w/e. **Q: Will this telescope track an object as it moves across the sky? I'm wanting to do 3-5 minute exposures continually for 3+ hours** A: Yes it will track. Not sure if the tracking is smooth enough for 3 to 5 minute exposures. I have had mixed success with 30 second exposures. The altitude and azimuth motors sometimes seem to go in a step function mode. All in all I am pretty happy with the scope but if I had to do it over again I would get an 8” on an equatorial mount. It would be lighter, more portable, easier to set up on a wet uneven lawn and more accurate tracking **Q: How powerful are the motors on the sides of the tube for tracking purposes? does camera/smartphone weight move it easily?** A: I noticed that I can generally have exposures of up to 30 seconds or maybe even a minute before blurred lines become an issue, depending on the location of an object. And this is with a Nikon D5100 **Q: how can one use a projector to show many people with sky watcher telescope?** A: use a usb telescope camera. send to laptop computer. and then use display clone from the laptop computer output HDMI to the HDMI input port of the projector ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***N on January 15, 2020* Yes, it is big, yes it is awesome. Now for all you fans, something I did not know. Upon opening the box, the first piece of paper slipped out and indicated , "by the way your Sky-Watcher has built in Wi-Fi." I did not know they had started doing this. I almost bought the Wi-Fi dongle with the scope. I did not have a lot of time with the scope before skies stopped cooperating. I never even used the hand control, just my phone. Fantastic. The pic of the Orion Nebula was just with me trying to line up the phone with the eyepiece, we know that isn't easy, but time was an issue. In any case, the thing kicks butt and has its own Wi-Fi, not networkable, but just connect with phone. I love you Sky-watcher, you're my only scope. Edit. Many folks ask about tracking for astrophotography. Added last pic of Orion with my Pixel with 1:20 minutes exposure. So yes you can do some exposure, but probably not more than 30 sec. Re-edit. Has issues with the drive. Skywatcher support was quick and helpful and sent new base. Very hard to find that type of customer support. Good job! ### ⭐⭐⭐ Review *by B***E on December 9, 2025* I am very sorry to leave this rating, as I think it is somewhat unfair, but I can't see doing better just yet. I start by noting that I am a professional astronomer, with years of observing experience with Celestron and Meade scopes, and I even teach laboratory astronomy courses. I'm extremely familiar with the alignment and use of Go-To telescopes. I bought this scope because I wanted a good light-bucket, that could reach further than my 8" catadioptrics. I don't do astrophotography, but a Go-To drive was essential as I've long since gotten star-hopping out of my system. The telescope arrived, and was an easy assembly. Collimation of the secondary and preparation for observing was straightforward. Optical tests showed that it was perfectly consistent with my 2" Ethos eyepieces, with no vignetting, which was really sweet to see. Also, optical tests on bright stars and the moon showed that the image quality of the optics was really great. Then...came the final test...star alignment. Alignment was straightforward on paper, and not to dissimilar to the methods used for Celestron and Meade 8" cats. I opted for two-star alignment, used the hand paddle to move the scope easily from star #1 to star #2. Alignment was declared complete. I tasked the scope to see M27, a fave object, as my "first light" detection. And....nothing. I tasked the scope to go to Vega, and instead I found myself looking at epsilon Lyrae, about 100' off target. So....I realigned, using Altair as star #1 and Capella as star #2....alignment successful, so the paddle declared. I tasked the scope to look at Albireo...again, about 100' off. I tasked it for Capella, which it found, but then it could not refind Altair. I rebooted the scope from a cold start, tried a third time. Same failure. Then, I rebooted the scope, tried "bright star alignment," and got similar bad results. The next clear night, I tried again, after having messaged with customer service at Skywatcher (they got back within 24 hours). I carefully (using a bubble level and compass) made sure my initial configuration of the scope was as required by the manufacturer. I also checked to see if NPE and CE values were set to zero--they were. But still no success in aligning the scope. I wanted to try more tests, but my grace period to return the scope was running out (it's the rainy season in NorCal, and clear nights are rare), so I had to return the scope. I am thankful I fastidiously saved ALL PACKING MATERIAL, bags, etc, so I could avoid a charge from the seller (Adorama). I steeled myself for a battle, as I was afraid Adorama would argue that I somehow damaged the scope, but they did not provide pushback. I intend to repurchase this scope in the summer, when I have more time to check it out. The scope looks really good, and users of the scope on social media tell me that the behavior of the scope I get was abnormal. ### ⭐⭐⭐⭐⭐ Review *by A***I on January 21, 2025* I took 2 hours to set up the base for my 12", because I wanted to do it carefully and was misled by the instructions about the side on which to screw the bracing foot and handle. I was also disappointed that although the parts list had 3 handles for the 12", there were only 2. I could have used that extra handle for fetching and packing. Anyhow all's well that ends well. The barrel and optics were set up in negligible time even though I had never before seen that clever design. The 9x50 finder was quickly aligned with the top of a distant telegraph pole, on which a snail hawk decided to perch and pose unknowingly. Next will be the electronics after I set up a solar powered 12V d.c. supply. ## Frequently Bought Together - Sky Watcher Sky-Watcher Flextube 300 SynScan Dobsonian 12-inch Collapsible Computerized GoTo Large Aperture Telescope (S11820) - SVBONY Red Laser Collimator for Newtonian Marca Telescope Alignment 1.25 inches 7 Bright Levels Triple Cemented Lens with 2 inches Adapter --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.de/products/725315895-skywatcher-flextube-300-synscan-dobsonian-12-folding-computerized-goto-large](https://www.desertcart.de/products/725315895-skywatcher-flextube-300-synscan-dobsonian-12-folding-computerized-goto-large) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-06-22*