Flextube / Collapsible Dobsonian Telescopes

Sky-Watcher USA Flextube Dobsonians will hit the sweet-spot for many amateurs, providing all the capability and value you are seeking in a large aperture telescope.

Large aperture, capable of
deep sky observing

Exclusive patented collapsible
steel strut system

Borosilicate mirrors with quartz overcoat, producing 94% reflectivity

For years, Dobsonian telescopes have provided astronomers with the most bang for their buck using a large aperture and simple design.  Viewing with a large aperture can provide a stellar experience, however the size of large reflector telescopes can pose problems for users looking to either store or transport their telescope from one location to another.  The Sky-Watcher Collapsible Dobsonian solves this problem with a unique collapsible design using three retractable steel struts, allowing for easy storage and transit.

The Sky-Watcher 12-inch Dob provides excellent views. Its generous aperture and quality optics pull in enough photons to make you feel as though you really are cruising through deep space. The collapsing tube is very useful, well built, and helps give the scope its striking appearance.
– Gary Seronik, Contributing editor at Sky & Telescope

2” Crayford-style focuser
with 1.25” adapter

8×50 Finderscope

25mm and 10mm Plössl eyepieces

Transport Anywhere, Anytime

Dobsonians are known for giving users a large aperture reflecting telescope at a low price, however they often lack portability. Sky-Watcher has innovated this classic telescope design by integrating a collapsible tube system, addressing users’ portability concerns. Sky-Watcher Flextube Dobsonians feature a strut system carefully designed to ease setup time in the field while delivering consistent optical performance. Each strut has preset indentations which place the optics in the same position time after time, maintaining collimation. Unlike other Dobsonians using a truss-tube system, Sky-Watcher’s Flextube Dobsonian does not need to be disassembled. The strut system is comprised of three 1” steel poles, joining the bottom and top portion of the optical tube. When extended, three chrome locking screws hold the instrument in place. Sky-Watcher’s Flextube Dobsonian holds collimation extremely well, forgoing the need to collimate each time it’s used. The retracting design can shorten the optical tube up to 36%, making storage and transit much easier.

Borosilicate? Gesundheit!

At the heart of any Sky-Watcher telescope are observatory-grade optical components. The Flextube Dobsonian is no exception, using components that yield exceptional contrast, 94% reflectivity and minimal vignetting. Mirrors are constructed with borosilicate glass, then coated with quartz, titanium and silicon dioxide to ensure an unparalleled viewing experience. Combining these superb optics with a large Dobsonian aperture helps ensure you’ll have bright, bold views of faint deep sky objects.

Smooth and Easy Movement

To ensure Sky-Watcher Dobsonians remain easy to use, all Flextube Dobsonians include a mount base that is so smooth, it can be rotated with the push of a finger. 8” and 10” models come complete with Teflon™ bearings, while the larger 12”, 14” and 16” models use steel needle bearings to ensure smooth and easy movement.

Accessories and More

At Sky-Watcher, we want you to feel confident in your purchase, knowing that your telescope will come with all required accessories to start using your telescope. All Sky-Watcher Dobsonian telescopes include a 2” Crayford focuser and a 1.25” adapter, allowing you to utilize both 2” and 1.25” eyepieces. Also included, are two 1.25” eyepieces (25mm and 10mm), a 8×50 finderscope and eyepiece tray.