Sky Watcher 10in. Flextube 250P Collapsible Dobsonian Telescope S11720

The Sky Watcher 10in. Flextube 250P Collapsible Dobsonian Telescope is a big, friendly horse of a telescope you can ride off into the sunset with, and then thrill to well resolved celestial views when twilight fades. The SW 10" DOB is an very satisfying telescope to own, an instrument that will provide a lifetime of continuing exploration of the heavens. This telescope will hit the sweet-spot for many amateurs, providing all the capability and value you are seeking in a large aperture telescope. Sky-Watcher's revolutionary truss-support concept allows the optical tube's front and back cells to collapse together, aligning on the truss support rods which can then be locked down for easy and secure telescope transport. This one piece, low-hassle OTA design is mechanically simple and results in a large aperture telescope that can be reasonably handled and transported by one individual. This innovation gives Sky-Watcher users tremendous functional ease-of-transportability. There is no question the incremental resolving power of a 10-inch aperture is visually impressive when compared to an 8-inch. Therefore, it is no wonder then that the 10" aperture is overtaking the 8" as the serious amateur astronomer's aperture of choice in a Dobsonian telescope. Sky-Watcher's compact, collapsible optical tube design makes the decision to step up in aperture to a 10" even easier. The Sky-Watcher 10" DOB Telescope utilizes quality components throughout. Pride of workmanship manifests itself in high quality standards of optical and mechanical fabrication. The polishing process for primary and diagonal mirror yields smooth mirror surfaces ensuring good contrast, and properly corrected optics show minimum alterations to the optical wave-front. On each parabolic primary mirror, and elliptical diagonal mirror aluminum is vacuum deposited to the front glass surface and then over coated with hard quartz (SiO4). Additional layers of Titanium Dioxide (TiO2) and (SiO4) are then applied. The mechanical and structural components of the OTA exhibit rigid construction and outstanding stability. The mount construction is sturdy and rigid. Mount design, while simple, facilitates smooth motions about both axes. Quality accessories enhance the observer's viewing experience. Observing with a Dobsonian has been described akin to shooting ducks in a gallery because it is so easy to find your target. Just swing your Sky Watcher 10in. Flextube 250P Collapsible Dobsonian Telescope to the quadrant of sky to be searched, and scan the vicinity. An 8x50mm Right Angle optical viewfinder provides both magnification and light gathering to help narrow your search for those elusive fuzzies when star-hopping. The standard-equipment backlash-free 2" Crayford Focuser insures ultra smooth focusing adjustments. Multi-coated, 4-element Plossl eyepieces (25mm and 10mm) provide a spacious 52mm Apparent Field of View. To ensure mechanical ease-of-use, SW uses a high-performance Teflon bearing system in both axes combined with tension adjustment in altitude to facilitate setting the appropriate amount of friction, assuring smooth vertical and horizontal manual movement without free-play from small bumps or gusts of wind. This also eliminates the need to have a balanced optical tube as in an equatorial mount. Sky-Watcher's Teflon bearing system is preferable to the use of ball-bearings. Ball-bearings make unintended movement of the optical tube more difficult to control. Fortunately, at low power, deep-space objects leisurely drift through the field of the SW 10" DOB, so constant mechanical adjustment of the telescope's orientation isn't needed to keep objects in the field of view. For an amazing way to be sure you are using one of the best scopes the observation industry has to offer, choose the Sky Watcher 10in. Flextube 250P Collapsible Dobsonian Telescope.

Specifications for Sky Watcher 10in. Flextube 250P Collapsible Dobsonian Telescope:

Features ofSky Watcher 10in. Flextube 250P Collapsible Dobsonian Telescope:

• 10" (254 mm) Dobsonian-style Newtonian
• 1200 mm focal length (f/5)
• 2" Crayford-style focuser with 1.25" adapter
• 4-element Plossl 25 mm and 10 mm 1.25" eyepieces
• 8x50 right angle erect-image finderscope
• Solid rocker-mount with Teflon bearings and tension clutch for altitude
• Teflon bearing for azimuth
• Eyepiece height at zenith: 48"

Package Contents:

• Sky Watcher 10in. Flextube 250P Collapsible Dobsonian Telescope
• Finder Scope