Bresser

Bresser Messier 8" Dobsonian Telescope

Code: 4716420

Bresser Messier 8" Dobsonian Telescope

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  • Newton optics with parabolic primary mirror made from H-PZ33 low expansion glass material
  • 2.5" HEX focuser with rack & pinion drive
  • Large altitude wheels provide smooth and precise movement even at high magnifications
  • Red dot finder and SPL 25mm eyepiece included
  • 6-point flotation system mirror cell for the for primary maximizes optical performance
  • Tube rings facilitate the use of the optics on equatorial mounts
  • The parts or the rocker-box are connected with metal furniture fasteners for easy assembly and dissasembly
  • Diffraction limited optics: Strehl > 0,8

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£0.00 £420.00
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BRESSER Messier 8" Dobsonian 

The BRESSER Messier 8" dobsonian is simply a breakthrough. Despite of its low price this telesccope offers a versatility and quality rivaling a lot more expensive telecopes. The optical diameter of 203mm (8") does not restrict your observations on solar system objects like the moon or the planets - you can reach farther into the sky and explore globular and open clusters, nebulae and galaxies. With that telescope those objects are beginning to show structures: globular clusters are no longer only fuzzy blobs, but are resolved into masses of individual stars. Nebulae, that can only be barely detected in smaller scopes, reveal structures within. 

The telescope is setting a new standard in versatility: the excellent Hexafoc focuser boosts a free diameter of 65mm (2,5") so that you do not have vignetting in big widefield eyepieces that is caused by smaller focuser barrels. The big altitude wheels handle those big, heavy eyepieces without problems - and when you intend to load even more (like a binocular viewer with two eyepieces) then you can move the tube in its tube rings and achieve balance within seconds. The excellent rigidity of the focuser makes focusing a snap - even for astrophotography. This is another virtue of this highly versatile telescope system: you can remove the altitude wheels from the tube rings, attach a dovetail and use the optical tube on a equatorial mount for astrophotography - in minutes. The focuser is handling even heavy cameras tilt and shifting-free. You are extremely demanding in your image sharpness? No problem - with the optional 10:1 gear reduction sharp images are easy. If you consider, that the focuser is that part of the telescope that is used most often, you will recognize the quantum leap this Hexafoc represents in a telescope of this price range. With the included standard accessories (LED-finder and 25mm SPL-eyepiece) the telescope is ready for observing.

If you need to transport or store the telescope as compact as possible you will like this: the rocker box of the 8" BRESSER Messier assembles and disassembles extremely easy and fast due to the use of metal standard furniture fasteners. So you can transform the bulky rocker box into a handy flat package of boards. This telescope is setting a new standard in usability, versatility and performance in its price class.


Please note: Reflector telescopes with optical design “Newton” are very good for astronomical observing at the starry night sky. But these telescopes are not well usable for observing landscape and nature during daylight. Therefore we suggest BRESSER refractor (lens) telescopes for landscape and nature observing.

FEATURES

  • primary mirror diameter: 203 mm
  • focal length: 1218 mm
  • 2,5" HEXAFOC focus
  • primary mirror out of special-purpose glass with little thermal expansion
  • shifting-free focusing, even with heavy accessories
  • easy to move the tube
  • dismountable rocker box
  • optics can be attached to other mountings
  • differently sized adjusting- and lock-screws

SCOPE OF DELIVERY

  • newtonian reflector
  • LED viewfinder
  • 25mm SuperPloessl eyepiece (Ø 31,7 mm / 1,25")
  • 1 extension shell 37,5mm for 2.5" Hexafoc
  • 1 eyepiece adapter Ø 31,7 to 50,8 mm 
  • 2 tube clamps
  • 2 altitude wheels
  • 1 rockerbox with 2 ground boards and assembly material


Technical Data

FIELD OF APPLICATION
FOCUS GROUP
PRODUCT FAMILY
OPTICAL SPECIFICATIONS
GENERAL TECHNICAL DATA
DIMENSIONS & WEIGHTS
Field of applicationDeep Sky Observation
Focus GroupBeginners
Product FamilyReflector telescope
Optical designNewtonian Reflector
Maximum recommended magnification400
Material Primary mirrorSpecial low expansion H-PZ33
Primary mirror diam.203 mm
Material Secondary mirrorBorosilicate-glass with low thermal expansion, individually matched to main mirror
Secondary mirror diameter57 mm
Mirror/Lens diam.203 mm
Focal length1218 mm
Aperture ratio6
Angular resolution0.6 arc seconds
FinderscopeDeLuxe Red Dot Finder
Mount TypeDobson
Material OTASteel
Mount typeDobson
Focusing system2.5" Hexafoc
Colourwhite
Ext. warranty after online registration*10 Years
Net weight OTA (incl. accessories)11.5 kg
Total length128 cm
Total width48 cm
Total height48 cm
Tube diameter250 mm
Tube length1150 mm
Net Weight total (incl. accessories)21 kg
Net weight mount (incl. accessories)9.5 kg
Eyepiece Barrel Diameter50.8 mm

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