StellaLyra 16" f/4.5 Dobsonian

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About this product

16" Truss Dobsonian telescope! 

Designed and manufactured to a very high standard by Guan Sheng Optical (GSO) in Taiwan. 

With a 16" aperture, this impressive Dobsonian telescope hoovers up photons! Definitely one for the deep-sky enthusiast. 

Viewing the lunar surface will feel like you can reach out and scratch plaster! Venus and its phases are also viewable. 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. So too, are many deep sky objects such as galaxies and nebulae. For many owners, this telescope will provide a lifetime of observing. 

All StellaLyra Dobsonian telescopes are fitted with a quality GSO aluminised parabolic primary mirror with minimum 93% reflectivity and a silicon-dioxide protective overcoat to ensure the surface remains bright for years to come.  

Collimation knobs on the primary mirror cell provide easy collimation adjustment, without tools, and an integrated fan provides fast cooling. 

This 16” model also features an impressive CNC-machined 2" Crayford focuser with 1:10 dual-speed focus adjustment for smooth, precise focusing. And no image-shift!

The focuser includes a 2" to 1.25" adapter, so you use both 2" and 1.25" eyepieces and accessories. Brass compression rings grip them securely without marring their nosepiece. A convenient 35mm focus extender is also supplied so you can achieve focus easily when using most long focal length 2" eyepieces. 

Two fully multicoated eyepieces (1.25" 9mm Plössl & 2" 30mm SuperView) are included so views will be clear and sharp from the outset.  

The Dobsonian base is delivered flat-packed and is easy to assemble. 

A robust roller-bearing assembly provides smooth, reliable azimuth adjustments. 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. 

For 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 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. This is useful when changing from a small eyepiece to a large, heavy one or when adding a second finderscope or binoviewer. 

For comfort and convenience, a Right-Angled Correct Image 8x50 finder scope is included, so no cricked neck!  

	Carbon Fibre Truss Tubes Six carbon fibre truss poles arranged in a triangular formation form the main telescope tube joining the bottom primary mirror box to the top secondary cage. The truss construction enables the telescope to fit in most cars and reduces the weight significantly vs solid tubes. The 'open' arrangement allows for quicker temperature equilibrium of the mirrors for the best performance. The CNC machined locking points and truss arrangement ensure robust and rigid construction that effectively holds collimation.
Focuser 2" dual-speed Crayford focuser 10:1 fine focus adjustment for precise focusing Crayford design provides smooth focusing with no image shift Includes a 2" to 1.25" adapter so you can use 2" and 1.25" eyepieces and accessories 35mm focus extension enables focus when using long focal length 2" eyepieces Brass compression rings hold items securely without marring the barrels A handy measurement scale makes it easy to remember focus positions when changing eyepieces
	Dobsonian Mount Supplied flat-pack but quick and easy to assemble Altitude tension clutch on the sides provides smooth, accurate movement and easy adjustment to suit different payloads and personal preference The azimuth axis (on the bottom) features a 'Lazy Susan' style roller bearing assembly for smooth 360º movement and an adjustable tensioner Handles on the side make the Dobsonian mount easy to move around the garden A handy 4-position eyepiece holder on the side provides convenient storage for eyepieces and accessories
8x50 Right-Angled Finderscope Straight-through finderscopes can be uncomfortable and inconvenient, so most StellaLyra Dobsonians are supplied with an 8x50 Right-Angle Correct Image finderscope. So no cricked neck!  A large 50mm aperture helps spot dimmer targets Cross-hair reticule for precise alignment Two adjustment screws and a sprung loaded tensioner make it quick and easy to align the finderscope to the main telescope (it can be aligned during daytime when aimed at a distant pylon, but be careful not to point it anywhere near the Sun)!
	Primary Mirror Cell Robust primary mirror cell holds collimation well. Collimation is easily adjusted using oversize, easy-to-grip adjustment and locking knobs. The primary mirror cooling fan helps draw air over the mirror for faster cooling. The fan can be powered using the supplied AA battery holder (batteries not included) or a separate 12v DC power supply with a centre positive 2.1mm/5.5mm DC jack.
Other Accessories 35mm 2" focus extension tube with brass compression ring for eyepieces and accessories that require additional back focus distance 9mm 1.25" 52º Plössl eyepiece with 6mm eye-relief 30mm 2" 68º Superview eyepiece with 22mm eye-relief 8x AA battery holder with 2.1mm DC plug to fit the primary mirror cooling fan

Size Comparison: 

Telescope Field of View Simulator

What's in the box

• 16" Newtonian Reflector Telescope Mirror Box
• Secondary Cage with Focuser
• 6x Carbon Fibre Truss Tubes
• Dobsonian Mount
• 8x50 Right Angled Erect Image Finderscope
• 9mm 1.25" Super-Plossl Eyepiece
• 30mm 2" Superview Eyepiece
• 35mm 2" Focus Extension tube
• 2" to 1.25" Adapter
• Cooling Fan & Battery Holder

Specifications

Downloads / Manuals

Manual

StellaLyra 16" Truss Dobsonian Assembly Manual

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