It consists of a Newtonian tube assembly riding on a simple, wooden altazimuth base. With our certified … Obsession 15 f4.5 vs. The Hybrid truss telescope design is quickly becoming a favorite. A Dobsonian telescope is an alt-azimuth mounted Newtonian telescope design popularized by the amateur astronomer John Dobson starting in the 1960s. This scope revealed the deep sky universe to me, and I used it for many years until I became interested in other kinds of telescopes. The best views I have had through this 20″ Obsession Dobsonian are of the planet Saturn, and the Messier 3 Globular Cluster. 18" Dobsonian Telescope for sale, complete with eyepieces, laser collimator and push-to guidance computer. Two plus years ago, I bought my first serious scope, an Orion XT 10i 10” dob, a very good starter scope. On the aluminum equatorial platform I place the oak Dobsonian azimuth base I've always used with my Newtonians. The Zhumell Z8 Deluxe telescope offers excellent performance at an unbeatable value. We offer a wide selection of Dobsonian reflector telescopes. A few months ago, I made the upgrade to an Obsession 20 (via the same friend). Each used product is tested by our technicians for full functionality before they are taken in on trade. It sells large aperture telescopes throughout the world. David Kriege was one of the first to start building truss tube dobsonian telescopes commercially, bringing portable large aperture telescopes to the astronomy community. 2" thick unbranded mirror in good condition, some dust and a few marks, I have not cleaned it, I'll leave that up to the new owner. They can be many times … Celestron 21024 FirstScope Telescope. Used Telescopes. I used the 30" (750mm) Newtonian at the Amateur Astronomy Centre Nr. I have like new GSO 6" F/6 OTA on a Dob base that was originally made for 6" F/8 OTA. A Dobsonian telescope is an altazimuth-mounted Newtonian telescope design popularized by John Dobson in 1965 and credited with vastly increasing the size of telescopes available to amateur astronomers.Dobson's telescopes featured a simplified mechanical design that was easy to manufacture from readily available components to create a large, portable, low-cost telescope. The mirrors reflect the light into eyepieces, giving a much clearer image. An example of a telescope they have produced is a Dobsonian with a 12.5 inch mirror. The Dobsonian telescope is popular among amateur astronomers because of its extra large aperture and low price. l have used the 9" (225mm) Refractor at the Godlee Observatory, Manchester University. Browse an extensive selection of astronomy equipment at Telescopes.net. It’s impossible to show you exactly what the view was like, but this photo of Messier 3 I captured gives you a rough idea. With an Obsession 15 you can really see the universe. My first real telescope was an Odyssey 8-inch Dobsonian purchased in 1987. Tabletop Dobsonians can be thought of as miniaturized versions of their full-size Dobsonian counterparts. These telescopes were a bit of a revolution in the pursuit, with sizes unreachable only a decade before, when a 10″ or 12″ telescope … Has a "QSP" sticker on the back, apparently from the last time it was coated. A year later I had the chance to buy an Obsession 15 from a friend. This is the main structural difference between Dobsonian and Newtonian telescope. It has a high quality, very sharp mirror which provides excellent views of the planets, galaxies, moon and many many more objects in the night sky. We had excellent views of Jupiter at 175x magnification. The Dobsonian reflector telescope is a simple, but precise 8-inch telescope that is a perfect choice for both beginners, as well as experienced astronomers. The Dobsonian-mounted Newtonian was intended to be a simple push-to altaz mount for visual observing, but Dobsonian reflectors can be used to take images of the planets by recording video and then stacking individual frames using software such as RegiStax or Autostakkert!, reducing the blurring effects of the atmosphere. 99. Bacup. Dobsonian Telescopes – Named after Sir John Dobson in 1960. They have also produced telescopes with computerized positioning. Purchase Dobsonian telescopes today and save at High Point Scientific! Obsession Telescopes are something of a standard in the astronomy community. The standard mirrors used for my range of Dobsonians are of an accuracy of 1/4-wave peak-to-valley on the reflected wavefront. Description Description. Four times the light gathering power of an 8 inch scope so you get much bigger and brighter images. We have documented our build with downloadable photographs available from the link at the top of this article so you can replicate the parts, but because your choice of drive motor and power supply could differ according to circumstances and availability you may have to adapt the design a little to suit your kit. This telescope is offered for local sale only because we cannot ship it. 12.5 inch, 18 inch, 20 inch, 22 inch and bigger. Sky Watcher Classic 200 Dobsonian 8-inch Aperature Telescope – Solid-Tube – Simple, Traditional Design – Easy to Use, Perfect for Beginners, White (S11610) 4.1 out of 5 stars 146. Equatorial Platforms: After receiving many enquiries over the years, and as there does not seem to be any other maker in the UK, I have decided to start building equatorial platforms that allow Dobsonian telescopes to have equatorial tracking. The Zhumell Z12 Dobsonian telescope features a massive 12” parabolic primary mirror that captures a substantial amount of light and produces crisp, bright images free of visual defects like spherical aberration. By: Abhat Location: Maryland. Category: Telescopes. Wilson Art brand Ebony Star style kitchen counter laminate (#4552-50) and Teflon pads are the widely agreed upon materials for Dobsonian bearings. We are your source for astronomy telescopes, eyepieces, astroimaging cameras, and more! Dobsonian telescopes are telescopes with a Newtonian Telescope tube assembly with a Alt-Azimuth mount. David Kriege was one of the first to start building truss tube dobsonian telescopes commercially, bringing portable large aperture telescopes to the astronomy community. 4.3 out of 5 stars 1,400. New and used telescopes are available from popular brands, including BRESSER, Celestron, Sky Watcher, National Geographic and BAADER. Best for beginners and those who want a portable Dobsonian. Select from favorite brands like the Apertura Dobsonian and Celestron Dobsonian. Newton used mirrors in place of the lens. Dobsonian sizes range from starter scopes of 6 inches up to 30 inches, but common sizes are 8 to 16 inches in diameter. Portrait of Dr. Erhard Hänssgen's 42 inch (107 cm) Dobsonian Telescope. You don't need to have expensive high end setup to start doing Astrophotography. Mirrors. Some of the best telescopes of 2018 straight from Virginia. Can … The best view I ever had of the globular cluster M13 was in a 22" (550mm) amateur owned Newtonian, at just 200x magnification. Dobson's telescopes featured a simplified mechanical design that was easy to manufacture from readily available components to create a large, portable, low-cost telescope. Sky Watcher Flextube 300 Dobsonian 12-inch Collapsible Large Aperture Telescope – Portable, Easy to Use, Perfect for Beginners, White/Black (S11740) 4.7 out of 5 stars 23. Ebony Star is a slightly textured laminate, and the "bumpiness" seems to be an important element to … A few other differences Zhumell Z130 Portable Altazimuth Reflector Telescope. This is a large telescope, built in the Obsession style but not an Obsession brand. The Dobsonian is a simple, low-cost telescope design popularized by San Francisco amateur astronomer John Dobson in the 1970s. Meade 12" Lightbridge Trussed Dobsonian Telescope - Modified Base - holds loads from 10mm Ortho to Large 2"20mm with... 07 Feb 2021 Views: 544 $229.00 For Sale 6" F/6 Dob. The Obsession 15 has the same quality and award winning design as our other telescopes at a really great price. 4.6 out of 5 stars 7. Technically Dobsonian (Alt-Az design) mounted telescope is designed for Observational purpose only but if you have a Digicam or DSLR capable of connecting to the telescope at prime focus you can do some descent Astrophotography right off the setup without need of expensive tracking mountsetup. OPT has over 70 years of experience in buying and selling Used Telescopes, our customers trust in our inspection process. The C11 tube is held inside a new lightweight rectangular adaptor box of 1/4" plywood fitted with an oak dovetail to grip the dovetail rail extrusion provided by … Depending on how far youd like to see, magnification ranges from less than 20x to over 100x, and apertures from 25mm to 305mm. The Dobsonian telescope is perfect for budding astronomers because they're powerful, easy to use, and very affordable. Obsession Telescopes Dobsonian - 25" quantity. Obsession 20 f5. Dobsonian Bearing Material. Home Classifieds Astromart Classifieds Telescope - Reflectors Coulter Odyssey 13.1 f/4.5 Dobsonian With Tracking Platform Coulter Odyssey 13.1 f/4.5 Dobsonian With Tracking Platform Please Log In to view the details for this classified ad. Meade Instruments 204011 12" LIGHTBRIDGE PLUS TRUSS-TUBE DOB. Obsession Telescopes is an American telescope manufacturer that specializes in Dobsonian telescopes.Founded in 1989 by David Kriege, the company is based in Lake Mills, Wisconsin. The stand-out feature of this telescope is the altazimuth mount. Telescope Options. Now we’ll show you how to complete and motorise the Dobsonian equatorial platform. For some of the best Dobsonian parts and upgrades out there, check out www.scopestuff.com. Find the best Dobsonian telescope for sale online at High Point Scientific. Manufacturer of Large Dobsonian Telescopes. There seem to be two rules for how big a scope to buy. is a sliding, adjustable system which can be used to quickly re-balance your Obsession Telescope (or almost any other Dobsonian mount Newtonian reflector truss telescope) when you have changed eyepieces, and/or added/removed something from the Upper Tube Assembly (UTA). Tabletop Dobsonian Telescopes. Best for beginners who need portability: Sky-Watcher 8″ When you need the best Dobsonian that will fit in the back of your VW Beetle convertible, this is the telescope you want and is the best Dobsonian for portability and storage. High Quality Custom Dobsonian Telescopes- Only the best reflector telescopes, handmade in the USA. Used Obsession 20" f5 "Classic" Dobsonian telescope with Argo Navis navigation computer and Servo Cat motor drive in both axis. Add to cart. Starmaster 16" f4.5 Dobsonian (Pre-owned) Home / Starmaster 16" f4.5 Dobsonian (Pre-owned) $3,995.00 +-Add to cart ... the mirror and cell may be left in the telescope for transport when ramps and transport handles are used for loading the scope. The 15” Obsession: Boston Terrier not included. The ultimate deep sky telescope is available to satisfy your obsession for the best performance and your demand for a superbly crafted instrument. Obsession Telescopes are something of a standard in the astronomy community.