product description
- 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
- 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 theoptional 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 dissassembles 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.
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
- 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
Dimension of shipping box No.1: 125x38x41cm - 15.0kg
Dimension of shipping box No.2: 54x54x22cm - 13.5kg -
FIELD OF APPLICATION Field of application Deep Sky Observation CUSTOM_ATTRIBUTE_CATEGORY_TITLE_FOCUSGROUP Focus Group Beginners CUSTOM_ATTRIBUTE_CATEGORY_TITLE_PRODUCTFAMILY Product Family Reflector telescope OPTICAL SPECIFICATIONS Optical design Newtonian Reflector Maximum recommended magnification 400 Material Primary mirror Special low expansion H-PZ33 Primary mirror diameter 203 mm Material Secondary mirror Borosilicate-glass with low thermal expansion, individually matched to main mirror Secondary mirror diameter 57 mm Objective diameter 203 mm Focal length 1218 mm Aperture ratio 6 Angular resolution 0.6 arc seconds Finderscope DeLuxe Red Dot Finder Mount Type Dobson GENERAL TECHNICAL DATA Material OTA Steel Mount type Dobson Focusing system 2.5" Hexafoc Colour white Standard warranty 2 CUSTOM_ATTRIBUTE_CATEGORY_TITLE_MASSES 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 Eyepiece Barrel Diameter 50.8 mm
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