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The new BRESSER Messier 12" Dobson enhances this well-liked telescope series while providing great portability due to its lightweight fibreglass telescope tube.
Despite its low price, it offers a variety of functions as well as quality that you would not find in considerably more expensive devices. Thanks to the powerful telescope aperture of 305 mm, you get significantly more light-gathering capacity than with the smaller models and are therefore not limited to observing the moon and the planets of our solar system - you can already look far out into the universe and observe globular clusters, nebulae and galaxies with even greater brightness. Details become visible in most deep-sky objects: globular clusters are clearly resolved into individual stars and gas nebulae, which can only be guessed at with smaller devices, show structure.
The device is unrivalled in its versatility: The excellent large Hexafoc focuser has an aperture of 65 mm - so there is no noticeable obstruction from the focuser tube even with large wide-field eyepieces.
Thanks to the large altitude wheels, even these heavier eyepieces are held effortlessly. And if a particularly large number of accessories is attached, such as a binocular attachment, then the entire tube can be moved inside the tube clamps - and everything is balanced again in a flash. The unrivalled rigidity of the focuser makes focusing easy - so photography with this tube is also possible.
This is another strength of this universal telescope: if you want to take photos, you can simply unscrew the altitude wheels from the tube and attach it to an equatorial mount using a dovetail bar - so there's nothing standing in the way of astrophotography. An optional 10:1 gear reduction for the focuser is available for the highest demands. Considering that the focuser is the most frequently used part of the telescope, the use of the Hexafoc in this device is a quantum leap for this price range.
With the initial equipment, you can start observing immediately - a 6x30 finder and a 25 mm SPL eyepiece are included in the scope of delivery. Various other viewfinder types can also be retrofitted using the 2 new hybrid viewfinder shoes (Art. 0620158) supplied as standard.
In addition, the new 12" BRESSER Messier makes it easy to transport the device as compactly as possible - the rocker box can be dismantled in a few simple steps because the parts are assembled with metal quick-release connectors. This quickly turns a bulky rocker box into a handy flat package of individual parts.
A telescope whose versatility, performance and user-friendliness set new standards in this price class.
Includes a high-quality objective solar filter for safe observation of sunspots, eclipses and planetary transits.
A BRESSER premium telescope for night and solar observation.
NOTE: Please note that "Newtonian" reflector telescopes are very good for astronomical observations in the starry sky, but are not well suited for nature and landscape observations during the day. We therefore recommend BRESSER refracting telescopes for nature and landscape observations.
FEATURES
- Type: Reflector telescope
- Telescope for night and solar observation
- Lightweight but very stable GRP telescope tube
- Primary mirror diameter: 12" (305 mm) parabolic main mirror
- Focal length: 1,525 mm
- Aperture ratio: f/5
- Maximum useful magnification: 610x
- Theor. resolving power: 0.45 arcseconds
- Easy to balance the tube by sliding it inside the tube rings
- Visual limiting magnitude: 14.5 mag
- Tube: GRP tube with adjustable tube rings and aluminium altitude bearings
- Focuser: 2.5" HEXAFOC focuser with 2" and 1 1/4" adapter
- Shifting-free focusing even with heavy accessories
- Secondary mirror bracket: very thin 4-arm steel spider
- Tube rings and altitude wheels made from aluminum
- Different sized adjustment and counter screws on the mirror cell
- Use of the optics also on EQ mounts (with optional dovetail bar)
- Mount: Dobsonian system
- Dismantlable rocker box
- Accessory tray for one 2" and two 1 1/4" eyepieces, mounted on the front side
- Eyepiece: BRESSER Super Plössl 25 mm (1 1/4")
- Viewfinder: 6x30 viewfinder
- Hybrid viewfinder shoes (Art. 0620158) included (2 pcs)
- Tube weight without accessories: 16 kg
- Tube weight with accessories: 18.9 kg
- Rocker box weight: 14.8 kg
- Total weight: 33.7 kg
- Overall dimensions: 60 x 60 x 163 cm
SCOPE OF DELIVERY
- Tube with Newtonian optics
- Aperture solar filter
- 6x30 viewfinder
- Hybrid viewfinder shoes (2 pcs)
- 25 mm Super-Plössl eyepiece (Ø 31.7 mm / 1.25")
- 1 extension tube 37.5 mm for 2.5" Hexafoc
- 1 eyepiece adapter Ø 31.7 to 50.8 mm
- 2 tube rings
- 2 altitude wheels
- Rocker box with 2 base plates and mounting material (disassembled for self-assembly)
Shipping dimensions Box 1: 134 x 45 x 45 cm - 19 kg
Shipping dimensions Box 2: 61 x 61 x 24 cm - 17 kg
Technical Data
| Field of application | |
|---|---|
| Field of application |
|
| Focus group | |
| Focus Group |
|
| Product family | |
| Product Family | Reflector telescope |
| OPTICAL SPECIFICATIONS | |
| Optical design | Newtonian Reflector |
| Magnification from | 43 |
| Maximum recommended magnification | 610 |
| Material Primary mirror | Special low expansion H-PZ33 |
| Primary mirror diam. | 305 mm |
| Secondary mirror diameter | 72 mm |
| Focal length | 1525 mm |
| Aperture ratio | 5 |
| Angular resolution | 0.45 arc seconds |
| Finderscope | 6 x 30 mm |
| GENERAL TECHNICAL DATA | |
| Colour | white |
| Bearing in alt-azimuth / RA | Needle roller bearing |
| Bearing in elevation / DEC | Teflon |
| Eyepiece Barrel Diameter | 50.8 mm |
| Material | Aluminium |
| Mount Type | Dobson |
| Extended warranty | 10 years |
Technical Data
| Field of application | |
|---|---|
| Field of application |
|
| Focus group | |
| Focus Group |
|
| Product family | |
| Product Family | Reflector telescope |
| OPTICAL SPECIFICATIONS | |
| Optical design | Newtonian Reflector |
| Magnification from | 43 |
| Maximum recommended magnification | 610 |
| Material Primary mirror | Special low expansion H-PZ33 |
| Primary mirror diam. | 305 mm |
| Secondary mirror diameter | 72 mm |
| Focal length | 1525 mm |
| Aperture ratio | 5 |
| Angular resolution | 0.45 arc seconds |
| Finderscope | 6 x 30 mm |
| GENERAL TECHNICAL DATA | |
| Colour | white |
| Bearing in alt-azimuth / RA | Needle roller bearing |
| Bearing in elevation / DEC | Teflon |
| Eyepiece Barrel Diameter | 50.8 mm |
| Material | Aluminium |
| Mount Type | Dobson |
| Extended warranty | 10 years |
Product reviews
BRESSER Messier 12" Dobson Telescope
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