About this product
Part Number: 4716425
The Bresser Messier 10" Dobsonian Telescope is essentially a larger version of the Messier 8" with 1.57x more light gathering ability.
Like its smaller sister it has an interesting design that includes tube-rings, large radius altitude bearings and a large 2.5” R&P Hex-Focuser.
The tube-rings enable you to slide the telescope forwards/backwards to balance heavy eyepieces or a binoviewer. The altitude bearings are removable so you can fit a dovetail (available separately) and attach it to a different mount, i.e. a motorised German Equatorial Mount.
The sturdy 2.5" R&P Hex-Focuser is noticeably better than the focusers fitted to most other Dobsoinans and can be used with large 2” eyepieces with confidence, it can also be upgraded to dual-speed with 10:1 gear reduction.
The 10” (254mm) parabolic primary mirror is made from low expansion H-PZ33O glass and sits in a 9-point primary mirror-cell with convenient collimation knobs (not screws).
Unlike competing products the telescope base employs standard metal furniture fasteners so can be assembled and disassembled quickly and easily.
Other features include blackened edges for the secondary mirror, a 6x30 optical finder and an accessory rack with room for both 1.25" and 2" eyepieces.
Supplied with a 25mm Super Plossl eyepiece.
- Newtonian 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
- 9-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 of the rocker-box are connected with metal furniture fasteners for easy assembly and dissasembly
- Diffraction limited optics: Strehl > 0.8
Telescope Field of View Simulator
What's in the box
- 10" Messier Telescope OTA
- OTA Tube Rings & Altitude Wheels
- Rocker Box Mount
- 6x30 Optical Finder
- 25mm SPL Eyepiece
- Drawtube extender 37.5mm for 2.5" Hex-focuser
- 2/1.25" Eyepiece Adapter
|Optical design ||Newtonian Reflector |
|Maximum recommended magnification ||500 |
|Material Primary mirror ||Special low expansion H-PZ33 |
|Primary mirror diameter ||254 mm |
|Material Secondary mirror ||Borosilicate-glass with low thermal expansion |
|Secondary mirror diameter ||74 mm |
|Objective diameter ||254 mm |
|Focal length ||1270 mm |
|Aperture ratio ||5 |
|Finderscope ||6x30 Optical Finder |
|Mount Type ||Dobsonian |
|Material OTA ||Steel |
|Mount type ||Dobsonian |
|Focusing system ||2.5" R&P Hex-focuser |
|Colour ||white |
|Warranty ||5 Years |
|Net weight OTA (incl. accessories) ||13 kg |
|Total length ||132 cm |
|Total width ||51 cm |
|Total height ||51 cm |
|Tube diameter ||300 mm |
|Tube length ||1200 mm |
|Net Weight total (incl. accessories) ||27.9 kg |
|Net weight mount (incl. accessories) ||16.4 kg |
|Average Rating (1 Review): |Knowing what you want in a scope !
Monday, 18 May 2020 | Stuart
Having decided on a change of direction in astronomy by concentrating more on visual rather than photography i took the plunge on the 10" bresser Dob . Initial thoughts were a mixture of dismay, disappointment
and finally elation . FIrstly , thanks to you guys at FLO .. i've been a persistent pest in bombarding you all with questions over the last two weeks and every time you have replied courteously .
The scope arrived within 24 hours !!!! ... It was a bit confusing because i didn't think there were enough screws ,but , the base was partly assembled already so that was fine.
Unfortunately part of the base is damaged ! ( disappointment )
This scope is BIG (dismay) .. Where the hell is it going to go ? Luckily being a guy , i don't tend to buy too many clothes so i found a space in my wardrobe (problem solved )
Now onto the best bit ... this scope excelled at first light ... Venus was a joy , and even my wife , who is now basically an astronomy widow , was impressed . The build quality of the scope , at least, is superb . Collimating was easy with the large screws instead of those fiddly little things you usually find on reflector scopes . I actually was initially going to return the scope...the damage to the base ( which i hope will be rectified) was a star reducer , but , i cant fault the scope and am now pursuing my knowledge of the night sky , without GOTO .. this actually makes astronomy more fun In my opinion. So , all in all , for me , it was the right purchase . But , beware the obvious pitfalls you get with a Dob .. i.e. Its Big and Its quite heavy in an awkward way . The obvious pluses are Aperture Aperture Aperture .. and fantastic views of our night sky .
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