Bresser Messier Dobson telescope with parabolic primary mirror and 2.5" HEX-focuser DOB8''
Bresser Messier Dobson telescope with parabolic primary mirror and 2.5" HEX-focuser DOB8'' 1
Bresser Messier Dobson telescope with parabolic primary mirror and 2.5" HEX-focuser DOB8'' 2

Bresser Messier Dobson telescope with parabolic primary mirror and 2.5" HEX-focuser DOB8''

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SKU: SHP-337DEBBA6FA49283
Brand: Unbranded
Category: Varied
$976.37 $1964.57
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PACKAGE: OTA:125x42x40cm,15kg Dobson Box: 54x54x22cm, 13.5kg Bresser Messier Dobson telescope with parabolic primary mirror and 2.5'' HEX-focuser Newton optics with parabolic primary mirror made from H-PZ33 low expansion glass material 2.5'' HEX focuser w

PACKAGE:
OTA:125x42x40cm,15kg
Dobson Box: 54x54x22cm, 13.5kg
Bresser Messier Dobson telescope with parabolic primary mirror and 2.5'' HEX-focuser
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
6x30 finder scope 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
aperture solar-filter included
telescope for night and solar observation
NEW - now including a high-quality aperture Solar-filter for safe observation of sunspots, eclipses and planet transits. Great telescope for 
night and solar observation.
 
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 (
6x30 
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
Optical design: reflector telescope
Mirror diameter: 203 mm / focal length: 1218 mm / F/6
Maximum recommended magnification: 406x
telescope for night and solar observation
high quality BRESSER Newton optics
parabolic primary mirror
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
aperture solar-filter
6x30 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
Dimension of shipping box No.1: 125x38x41cm - 15.0kg
Dimension of shipping box No.2: 54x54x22cm - 13.5kg
Technical Data
FIELD OF APPLICATION
Field of application
Deep Sky Observation
FOCUS GROUP
Focus Group
Beginners
PRODUCT FAMILY
Product Family
Reflector telescope
OPTICAL SPECIFICATIONS
Optical design
Newtonian Reflector
Maximum recommended magnification
400
Material Primary mirror
Special low expansion H-PZ33
Primary mirror diam.
203 mm
Material Secondary mirror
Borosilicate-glass with low thermal expansion, individually matched to main mirror
Secondary mirror diameter
57 mm
Mirror/Lens diam.
203 mm
Focal length
1218 mm
Aperture ratio
6
Angular resolution
0.6 arc seconds
Finderscope
DeLuxe Red Dot Finder
GENERAL TECHNICAL DATA
Material OTA
Steel
Mount type
Dobson
Eyepiece Barrel Diameter
50.8 mm
Colour
white
Mount Type
Dobson
Extended warranty
10 years
DIMENSIONS & WEIGHTS
Net weight OTA (incl. accessories)
11.5 kg
Total length
128 cm
Total width
48 cm
Total height
48 cm
Tube diameter
250 mm
Tube length
1150 mm
Net Weight total (incl. accessories)
21 kg
Net weight mount (incl. accessories)
9.5 kg
 
 
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