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Telescopes > Explore Scientific > Ultra Light > Explore Scientific Dobson telescope N 500/1800 Ultra Light Generation II Hexafoc DOB
Product no.: 56795

Dobson telescope N 500/1800 Ultra Light Generation II Hexafoc DOB

$ 8,800.00 incl. VAT, plus shipping costs
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Product description

More about the series Ultra Light...

Dobsonian telescopes are among the most practical instruments in astronomy. They are of simple construction and yet a brilliant idea. They essentially consist of two parts: firstly the optics, which in most cases is a solid tube or truss tube design; and secondly the mount, a wooden box (also called a 'rocker box') which sits on the ground and into which the telescope is inserted. This design allows you to begin observing sessions immediately without first having to spend time setting up and aligning a complicated mount. The basic idea of the Dobsonian design came from the wish to have a big telescope at a low price, a wish that has succeeded brilliantly. A true fan base has developed since the invention of the Dobsonian telescope which is dedicated to these instruments and their fascinating simplicity and to the idea of 'high performance at low price'.

Explore Scientific offers lightweight tubular aluminium frame which is optimised for transport and quick deployment.

  • The mount for the secondary mirror can securely adjusted without tools.
  • The primary mirror can be adjusted anteriorly during observation and sits within a modern cell with radial roller bearings and a 9-point flotation system
  • Large altitude bearings allow for quiver- and judder-free movements, even at large magnifications
  • The cap and altitude bearings fit inside the rockerbox, the mirrorbox has a lid for transportation, so that only two aluminium boxes and one bundle of poles have to be transported.
  • Extremely high structural rigidity!
  • Dew-resistant due to aluminium construction: No more bulging press boards thanks to exclusive use of aluminium and other metals
  • Two radial primary mirror fans for rapid temperature adjustment

Transport dimensions for mobile operation:

  • Rockerbox 678 x 678 x 347mm
  • Mirrorbox 590 x 590 x 361mm
  • Pole length approx. 1084mm

Weights:

  • Mirror housing with altitude bearings: 35.8kg
  • Upper section with secondary mirror: 3.8kg
  • Rocker box lower section: 10.6kg
  • 4 pairs of struts: 2.8kg
  • Primary mirror weight: 20kg

It not only matters which telescope you buy but also where you buy it. Our additional services:

  • We are a leading telescope dealer and know the devices we sell. Our customer service team will gladly help you after your purchase if you have problems with assembly or operation.
  • We provide a copy of the 80-page "Telescope ABC" beginners handbook with every telescope.

Made in Germany and Hungary

Specifications

Optics


Type
Reflector
Type of build
Newton
Aperture (mm)
500
Focal length (mm)
1800
Aperture ratio (f/)
3,6
Resolving capacity
0,23
Limit value (mag)
15,3
Light gathering capacity
5100
Max. useful magnification
1000
Tube construction
Truss Tube
Tube material
Aluminium

Reflector


Secondary mirror diameter (mm)
120
Ventilation for central mirror
yes
Adjustable
yes
Primary mirror - Diameter (mm)
500
Secondary mirror obstruction
24
Primary mirror - Material
Quartz
Secondary mirror material
Quartz
Main mirror´s construction
parabolic
secondary mirror design
Plan
Secondary Mirror Heating
no

Focuser


Type of build
Hexafoc
Connection ( to eyepiece)
2
Gear reduction
1:10 fine focusing
Free aperture (mm)
64

Mount


Type of build
Dobson
Mounting type
Dobson
GoTo control
no
Battery compartment
yes

Tripod


Material
Aluminium
Type
Rockerbox

Included accessories


Finder scope
8x50
stray light protection
no
Eyepiece adaptor
1,25" - 2"
Antiglare protector
yes
Battery compartment
yes
Extension tubes
yes
Counterweights (kg)
4 x 1,0

General


Total weight (kg)
53
weight of the heaviest component (kg)
36
Series
Ultra Light
Eyepiece height at zenith (mm)
1630

Area of application


Moon & Planets
yes
Nebulae & galaxies
yes
Nature Observation
no
Astrophotography
no
Sun
no

Recommended for


Beginners
no
Advanced
yes
Observatories
no

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Media (1)
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Maintenance & Cleaning > Other (2)

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*All prices include VAT plus shipping costs.

Explore Scientific Dobson telescope N 500/1800 Ultra Light Generation II Hexafoc DOB
Included accessories

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