![]() ![]() Crayford design provides smooth focusing with no image shift.10:1 fine focus adjustment for precise focusing.8x50 Right-Angled Correct Image finderscope for comfort and convenience.Supplied with fully multicoated 1.25" 9mm Plössl and 2" 30mm Superview eyepieces.Smooth, stable Dobsonian mount with tension adjustments, four slot eyepiece holder and front carry-handle.35mm focus extension enables focus when using long focal length 2" eyepieces. ![]() 2" to 1.25" adapter enables the use of both 2" and 1.25" eyepieces and accessories.CNC-machined 2" dual-speed Crayford focuser with non-marring brass compression rings.Rigid, steel telescope tube with 4-vane, all metal secondary Spider and adjustable primary cell.Cooling fan brings the primary mirror to ambient temperature quickly for best performance.Sturdy primary mirror-cell with easy grip collimation knobs.Aluminium and silicon dioxide (SiO2) protective mirror coatings.Parabolic primary mirror with minimum 93% reflectivity.NOTE: The assembly instructions are generic for 8", 10" & 12" models, so please don't be concerned if your telescope is supplied with fewer screws than shown in the instructions. This is useful when changing from a small eyepiece to a large, heavy one or when adding a second finderscope or binoviewer.įor comfort and convenience, a Right-Angled Correct Image 8x50 finder scope is included, so no cricked neck! The mount also features a convenient balance adjustment mechanism with an engraved scale that enables the telescope to be moved forward or backward for precise balance. Metal plates above and below the bearings prevent them from sinking into the softer wood (no divots!), so the movement remains smooth, even after years of use.įor altitude adjustment, a robust steel shaft and CNC-machined metal plates with large knurled tension adjustment knobs, one on each side, provide smooth, precise movements and adjustable tension. The Dobsonian base is delivered flat-packed and is easy to assemble.Ī robust roller-bearing assembly provides smooth, reliable azimuth adjustments. Two fully multicoated eyepieces (1.25" 9mm Plössl & 2" 30mm SuperView) are included so views will be clear and sharp from the outset. A convenient 35mm focus extender is also supplied so you can achieve focus easily when using most long focal length 2" eyepieces. Brass compression rings grip them securely without marring their nosepiece. The focuser includes a 2" to 1.25" adapter, so you use both 2" and 1.25" eyepieces and accessories. This 8” model also features an impressive CNC-machined 2" Crayford focuser with 1:10 dual-speed focus adjustment for smooth, precise focusing. For many owners, this telescope will provide a lifetime of observing.Īll StellaLyra Dobsonian telescopes are fitted with a quality GSO aluminised parabolic primary mirror with a minimum 93% reflectivity and a silicon-dioxide protective overcoat to ensure the surface remains bright for years to come.Ĭollimation knobs on the primary mirror cell provide easy collimation adjustment without tools, and an integrated fan provides fast cooling. So too, are many deep sky objects such as galaxies and nebulae. In good seeing conditions, you can observe Mars with surface shading and polar cap, Jupiter's weather bands and a number of its Moons and Saturn with its rings, including the Cassini division, are also clearly visible. Viewing the lunar surface will feel like you can reach out and scratch plaster! Venus and its phases are also viewable. With an 8" aperture, this easy-to-use Dobsonian telescope is an excellent choice for visual astronomy. Part Number: GS680-D The UK's BEST 8" Dobsonian telescope!ĭesigned and manufactured to a very high standard by Guan Sheng Optical (GSO) in Taiwan.
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