Online Sales & Advice 01342 837098
Shopping Basket
0 item(s) - £0.00
You have no items in your shopping cart.

0

Dobsonian Telescopes

It's not just a big telescope. It's a big telescope that goes anywhere. The New generation Dobsonians offer you great portability and large aperture optics.

7 Item(s)

Grid  List 

  1. National Geographic 76/350 Compact Telescope

    National Geographic 76/350 Compact Telescope

    The National Geographic 76/350 Dobsonian Telescope for stargazers is extremely portable, powerful and easy to use Learn More
    £93.00
  2. National Geographic 114/500 Compact Telescope

    National Geographic 114/500 Compact Telescope

    The National Geographic 114/500 Compact Telescope is a great choice for those who want a simply, yet sturdily mounted telescope to begin their exploration of the heavens. Learn More
    £115.00
  3. Explore Scientific Ultra Light 10" Dobsonian

    Explore Scientific Ultra Light 10" Dobsonian

    Special Offer: get the Revelation Observer's Eyepiece Kit worth £124 FREE when you order this telescope!  Offer available while stocks last.

     

    The Explore Scientific Ultra Light 10" Dobsonian is ideal for those who want a telescope with good light gathering power and great optics in a compact easy-to-store package. This telescope's low focal ratio Newtonian optics provide excellent widefield views of Deep Sky objects and is also a creditable performer when it comes to Lunar and Planetary work too. If you've been lured by the idea of a big dobsonian, but balked at the weight and storage of a lagre instrument, the Explore Scientific Ultra Light 10" Dobsonian is well worth your consideration. This telescope also features an innovative collimation system for both Primary and Secondary Mirrors and an excellent 2" Crayford-type/low profile Rack and Pinion Hybrid focuser, with 10:1 dual speed focusing wheels.

    Learn More
    £669.00
  4. Clearance Meade LightBridge 12" Dobsonian - TUBE ONLY

    Clearance Meade LightBridge 12" Dobsonian - TUBE ONLY

    This is the change to own a Meade Lightbridge Dobsonian OTA only - please note this does not come with a base! If you're looking for a lightweight truss tube for mounting on an EQ Mount (just add tube rings and mounting plate), or fancy making your own base, this is the ideal DIY project! Learn More

    Regular Price: £1,345.00

    Special Price £699.00

  5. Hubble Optics Dobson telescope N 457/2058 UL18 f/4.5 Premium Ultra Light DOB

    Hubble Optics Dobson telescope N 457/2058 UL18 f/4.5 Premium Ultra Light DOB

    The Hubble Optics Dobson telescope N 457/2058 UL18 f/4.5 Premium Ultra Light DOB is a lightweight construction ultraportable 18-inch telescope. The views through an instrument of this size are extremely impressive and the designers of this telescope have achieved an excellent balance between price, build quality and optics. A larger telescope such as this is not for the beginner, but the Hubble Optics UL18 will continue to deliver consistently breathtaking views for those who are up to the challenge of owning a telescope on this scale. To make finding and centering objects easier, an additional encoder "push to" kit is available, as is a light shroud - both are highly recommended. Please note: this telescope is not kept in stock and normally has a lead time of 3-5 weeks for delivery. Learn More
    £4,060.00
  6. Hubble Optics Dobson telescope N 508/2134 UL20 f/4.2 Premium Ultra Light DOB

    Hubble Optics Dobson telescope N 508/2134 UL20 f/4.2 Premium Ultra Light DOB

    The Hubble Optics Dobson telescope N 508/2134 UL20 f/4.2 Premium Ultra Light DOB is a massive 20" system designed to bring you exceptionally detailed views of the deep sky in a one-person-portable package. Learn More
    £5,839.00
  7. Explore Scientific Ultra Light Dobson 20" f/3.6

    Explore Scientific Ultra Light Dobson 20" f/3.6

    Special Offer: get the Revelation Observer's Eyepiece Kit worth £124 FREE when you order this telescope!  Offer available while stocks last.

    The Explore Scientific Ultra Light Dobson 20" f/3.6 GENERATION II is the largest of Explore Scientific's Dobsonians - offering enormous light gathering power in a comparatively portable package. If you're looking for a telescope that will actually delivery the types of deep sky views you've been dreaming of, without the necessity for permanent observatory mounting - then the Explore Scientific Ultra Light Dobson 20" f/3.6 GENERATION II could be for you.

    Despite its large aperture the Explore Scientific Ultra Light Dobson 20" f/3.6 GENERATION II can be transported easily 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 an optimized aluminium-sandwich construction allows for small movements even at high magnifications. The focus position is already positioned to accept Explore Scientific's Coma Corrector (part No. 0510330), making it the ideal workhorse for the deep-sky enthusiast. A telescope with a 20-inch/ 500mm aperture gathers more than 5100-times more light than the naked eye. Details on planetary surfaces stand out even to unexperienced observers and countless deep-sky objects show details and traces of color. Bright globular clusters are resolved down to the core and the view of the lunar terminator will provide a unforgettable experience.

    Both the fast 20" f3.6 main mirror and the large 120mm secondary mirror are made of high quality quartz material, which means cooling time is reduced to a minimum and the Dobsonian is quickly ready for use. Every main mirror is delivered with an individual optical test certificate, which guarantees the highest quality. A laser engraved center mark of the main mirror allows easy adjustment of collimation. The optical surface has a high-quality aluminum silvering with 94% reflectivity and an extremely resistant quartz protection layer. This overcoat allows the mirror to overcome frequently occurring fogging and dew residue cleanups without any fear of damaging the surface and guarantees a long service life.

    A complete redesign of this Dobsonian was necessary to ensure the significantly increased requirements to stiffness and load bearing capacity of the optical components. All connections of the tube structure were made in the TIG welding process and no rivets and screws were used. This has made it possible for us to produce this 20" light weight Dobsonian so unbelievably stiff in spite of the low weight - a noticeably good quality which is searching for its match. The production of almost all mechanical components is carried out by our partners in Hungary and the final assembly of the optics and subsequent quality control takes place in Rhede, Germany.

    The design and equipment specifications of the smaller Dobsonian models, which have on the market for years now, have been used as a basis for this design. First of all, of course, very easy deconstruction/reconstruction and transportability are paramount. Set-up and dismantling can be carried out without tools. The main and secondary mirrors are adjustable during the observation and only two adjusting screws have to be moved. Thanks to the use of precision ball-heads in the main mirror cell and a precision hinge for secondary mirror suppport, the adjustment is absolutely easy and guarantees excellent stability. All connecting parts of the tube trusses now consist of CNC machined aluminum and are attached by stainless steel dowel screws. The secondary mirror can now also be adjusted by the adjusting screws in the direction of the optical axis. The tried and tested 2.5 HEXAFOC focuser with 1:10 fine adjustment has been used for years - this allows vignetting-free observation despite the fast aperture ratio. A second 40° displaced installed mounting plate with a viewfinder shoe allows the rotation of the tube top in combination with a favorable position of the viewfinder tube, or the mounting of an additional TELRAD viewfinder. The 6 supporting feet underneath the rockerbox offer a perfect stability and guarantee a smooth tracking in azimuth. Four smaller fans are installed in the side of the mirror box, as well as a large fan installed under the main mirror. This allows an even quicker adaptation to the ambient temperature and reduces the tube seeing (boundary layer removal). The lateral altitude wheels can now be stowed comfortably in the foam layers of the mirror box.

    Last but not least another plus point: the optical tube and the mirror cell are designed to be also used on heavy equatorial mounts.

    Dimensions for mobile use:

    DIMS total: 680x680x1790mm; Rockerbox 678mmx678mmx347mm; Mirrorbox 590mmx590mmx361mm; Trusses approx. 1084mm; Truss diameter: 25mm; Eyepiece height while pointing at zenith approximately 1,63m; 20“ Total net weight: 53 kg; 20“ Mirror Box + Altitude wheels: 35,8kg; 20“ Secondary Cage: 3,8kg; Rockerbox: 10,6 kg; 20“ 4 Truss pairs: 2,8kg; 20“ Primary mirror: 20kg

    IMPORTANT NOTE: All current product pictures are showing the prototype. Many hints from our customers have pushed us to make some additional changes which will require some updates.

    SPECIFICATIONS:

    Truss-Dobsonian telescope in full Aluminium construction
    Handcrafted in HUNGARY and GERMANY
    Fast 20" f3.6 optics with 1800mm focal length
    Large 120mm secondary mirror (short axis)
    Quarz primary- and secondary mirror set
    Laser engraved central mark on primary mirror
    Eyepiece height while pointing at zenith approximately 1,63m
    Full welded rigid telescope structure - no rivets and no screws
    Telescope tube and rockerbox powder-coated
    Collimation while observing with the delivered tooling
    DeLuxe 2,5" HEXAFOC focuser with 1:10 gear-reduction
    8x50 finder scope with red illuminated reticle
    Slider bearings made from TEFLON und GRP for smooth and precise movement
    Improved primary mirror cell with completely redesigned mechanics
    High precision hinge system for secondary mirror holder
    Secondary mirror holder with adjustment mechnism along the optical axis
    6 larger feet to improve stability
    Counter-weights (2 x 1.0 kg) included
    2 universal finder slots to enable an easy finder position
    Quick-lock fasteners with new springloaded design for comfortable use
    Large powder-coated yellow altitude wheels for smooth tracking
    Altitude wheels can be stored in the mirror box
    5 cooling fans are speeding up the cool-down time

    WHAT'S IN THE BOX:

    Truss Dobsonian Telescope
    Individual optical test report for primary mirror
    8x50 finder with red illuminated reticle
    Stray light shield for secondary cage
    Primary mirror collimation tool
    Battery compartment with bag for fans
    Extension tube for focuser
    Reducer 2"/1.25"
    Manual

    Learn More
    £6,241.00

7 Item(s)

Grid  List