Explore Scientific 254mm Ultra Light Dobsonian Telescope (Gen. 2)

Ultra Light Dobsonian 254mm GENERATION II - with completely redesigned and improved construction.

No telescope type has influenced amateur astronomy as radically as the dobsonian telescope. Before the introduction of this telescope type by John Dobson the vast majority of amateur telescopes were small inadequate refractors on shaky mounts - just good enough to show the polar regions on mars or the rings of Saturn. Bigger telescopes, like the Schmidt-Cassegrain telescopes, were restricted to the relatively small group of amateurs that could afford them.The brilliant combination of simple - but effective - mechanics and the largest aperture available led to a worldwide triumph of this concept. No other telescope type offers you so much light for your money as a good dobson. We have taken the motto "held together by gravity and driven by yoghurt power" and offer a modern version of the classic - designed by amateur astronomers for amateur astronomers. Despite its large aperture the telescope can be transported easily even in small cars and is assembled within minutes without tools. The construction was optimized for maximum rigidity with a minimum of mass. The combination of big altitude wheels and a optimized aluminium-sandwich construction allows for small movements even at high magnifications. The focus position is already positioned to accept our coma-corrector. The ideal workhorse for the deep-sky enthusiast. A telescope with 254mm aperture gathers more than 1300-times more light than the naked eye. Details on planetary surfaces stand out even to unexperienced observers, and countless deep-sky objects show details. Bright globular clusters are resolved down to the core and the view of the lunar terminator will provide a unforgettable experience.

Dimensions for mobile use: Rockerbox 395mmx395mmx310mm; Mirrorbox 330mmx330mmx295mm; Trusses approx.700mm
Eyepiece Height while pointing at zenith approximately 1,15m; 10“ Net total weight: 26,4 kg; 10“ Mirror Box: 14 kg; 10“ Secondary cage +Rockerbox: 9,7kg; 10“ 4 Pairs of trusses: 1,5kg; 10“ Altitude Wheels: 1,2kg ; Focuser thread: M54 x 0.75 mm


SPECIFICATIONS 

• Truss-Dobsonian Telescope in full Aluminium construction
• NEW: Slider bearings made from TEFLON und GFK for smooth and precise movement
• NEW: Improved main mirror cell with completely redesigned mechanics
• NEW: Altitude bearings with new designed brake and friction system
• NEW: Universal finder slot to enable an easy finder upgrade
• NEW: Quick-lock fasteners with new springloaded design for comfortable use
• NEW: Powder-coated yellow altitude wheels to improve durability
• NEW: Laser engraved central mark on main mirror

SCOPE OF DELIVERY

• Truss Dobsonian Telescope
• LED finder with standard finder slot
• Stray light shield for secondary cage
• Main mirror collimation tool
• Battery compartment with bag for fans
• Extension tube for focuser
• Reducer 2"/1.25"
• Manual

 

Technical Data

Field of application
Field of application	Deep Sky Observation Lunar observation Planetary observation
Focus group
Focus Group	Advanced Amateurs Visual enthusiasts Beginners
Product family
Product Family	Reflector telescope
OPTICAL SPECIFICATIONS
Optical design	Newtonian Reflector
Magnification up to	500
Material Primary mirror	BK-7
Primary mirror diam.	254 mm
Mirror/Lens diam.	254 mm
Focal length	1270 mm
Aperture ratio	5
Angular resolution	0.51 arc seconds
Finderscope	DeLuxe Red Dot Finder
GENERAL TECHNICAL DATA
Material OTA	Aluminium
Colour	black
Transportability	very good
Eyepiece Barrel Diameter	50.8 mm
Mount Type	Dobson
Extended warranty	5 years