Sky-Watcher Flextube 250 Dobsonian 10-inch Collapsible Large Aperture Telescope – Portable, Easy to Use, Perfect for Beginners
Style: 10" Collapsible Dobsonian
Brand: Sky Watcher
- Product Dimensions: 38 x 27 x 19 inches
- Item Weight: 42 pounds
- Item model number: S11720
- Is Discontinued By Manufacturer: No
- Date First Available: July 20, 2010
- Manufacturer: Sky-Watcher
- LARGE APERTURE: Get a bright, bold viewing experience at a fraction of the cost of other optical designs.
- INNOVATIVE COLLAPSIBLE DESIGN: Unique strut design allows for optical tube to collapse for ease of portability while keeping collimation
- PROPRIETARY TENSION CONTROL HANDLES: These patented handles allow for accurate movement without the need for perfect balance.
- 94% REFLECTIVE MIRRORS: Fully multi-coated borosilicate primary and secondary mirrors deliver exceptional views.
- TEFLON BEARINGS: Proprietary Teflon bearings ensure smooth azimuth movement.
- COMES COMPLETE: All accessories such as, 2-inch Crayford-style focuser with 1 1/4-inch adapter, two super wide-angle eyepieces (25mm and 10mm), and 8x50 right-angle finder scope are included with purchase.
- STURDY AND LIGHTWEIGHT DESIGN: When fully assembled, the Dobsonian weighs only 40 pounds fully assembled (33 pound tube, 26.5 pound base)
Style:10" Collapsible Dobsonian 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. 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 Collapsible 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 Dobsonians
using a truss-tube system, Sky-Watcher’s Collapsible 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. Unlike truss tube
Dobsonians, Sky-Watcher’s Collapsible 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 Collapsible 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. To ensure Sky-Watcher Dobsonians remain easy to use, all Collapsible
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.Upgraded Pro ModelsSky-Watcher’s 14” and 16” Collapsible
Dobsonian Pro models offer a few additional upgrades. Pro models also use a
conical parabolic mirror to help reduce the weight of the primary and for
faster cool-down time. Additionally, a 10:1 dual-speed Crayford-style focuser
offers users a more precise method for focusing and needle bearings produce
smoother, quieter movement. Pro models also include Sky-Watcher’s premiere
collapsible mount which uses an easy-breakdown base for enhanced portability.
Normally, these larger aperture scopes would be extremely difficult to
transport but with Sky-Watcher’s innovative design these telescopes can be
used anywhere. 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 8x50 finderscope and eyepiece tray.
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We stand behind our
products. Items can be returned for
exchange or full refund within 30 days
from the date you receive your
Return shipping is the responsibility of
buyer unless the return is a result of
our mistake (i.e., your receive the
We will pay for return
shipping and replacement back if an
exchange of the same product is
requested due to an error.
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Filed under: High-End Telescope Auctions (USA)