It is difficult to overestimate the capabilities of the Levenhuk Ra 300N Dobson telescope. With this telescope, it is possible to see thousands of objects in the night sky, many of them in detail. Only bad weather or unfavorable atmospheric conditions can spoil the produced image. But when the conditions are good, the telescope will reveal countless astronomical beauties. All objects in the NGC catalog, the Moon, the planets of the Solar System with their satellites, comets, etc. are within reach of possible observations. This telescope is ideal for astronomical observations in the countryside and proves to be an excellent choice both for beginners and experienced amateur astronomers.
Parabolic primary mirror with aluminum coating
The diameter of the primary mirror is 300 mm. It is a parabolic mirror, so optical distortions are minimized. The optics create a clear image up to the maximum magnification. The aluminum coating has a reflection coefficient of 92~96%. The optical components of this telescope are unmatched. In addition, it is equipped with a dual-speed Crayford focuser that allows smooth focus adjustments.
Active cooling of the optics for faster temperature stabilization
On the back of the telescope tube there is a cooling fan. It serves to speed up the temperature stabilization process. Under normal conditions, it can take several hours for the optics to reach thermal equilibrium with the ambient temperature. However, active cooling can almost halve this wait. The fan is battery-powered (batteries sold separately).
Dobsonian mount with side bearings equipped with brake system for smoother tube movement
The Dobsonian mount has been significantly improved compared to classic mounts of this type. The special side bearings equipped with a brake system allow the optical tube to move smoothly. It is possible to move the optical tube a few centimeters up or down when using a heavy eyepiece or an optional finder. There are graduated scales on the sides of the mount for easier balancing. The bearings have a very robust design and will ensure great smoothness throughout their service life.
Ready-to-use kit
In addition to the optical tube and mount, the kit includes a 9 mm eyepiece, a 30 mm eyepiece, and an 8x50 mm finder scope. Thanks to these, it is possible to make observations immediately.
Features:
- Newtonian reflector with 300 mm parabolic primary mirror
- Special aluminum coating with reflection coefficient 92~96 %
- Active battery-powered cooling for faster temperature stabilization
- Dual-speed Crayford focuser for precise focus adjustments
- Easy-to-use Dobsonian mount with side bearings equipped with brake system for smoother optical tube movement
- Minimal optical distortion, large aperture and easy-to-use design
Kit includes:
- Telescope optical tube
- Dobsonian mount
- Plössl 9 mm eyepiece
- Super View 30 mm eyepiece
- 8x50 mm finder scope
- Finder base
- Cooling fan
- User manual and lifetime warranty
| Brand | Levenhuk Inc., USA |
| Warranty, years | lifetime |
| EAN | 5905555002620 |
| Package size (LxWxH), cm | 156x58x49.5 |
| Shipping weight, kg | 49.14 |
| Optics design | reflector |
| Optical scheme | Newtonian |
| Optics material | BK-7 |
| Lens treatment | aluminum |
| Primary mirror diameter (aperture), mm | 304 |
| Secondary mirror obstruction, mm | 70 |
| Lens shape (mirror) | parabolic |
| Focal length, mm | 1520 |
| Maximum usable magnification, x | 608 |
| Aperture ratio | f/5 |
| Resolution threshold, arcseconds | 0.456 |
| Limiting apparent magnitude | 14.9 |
| Eyepieces | Plössl 9 mm (168x), Super View 30 mm (50x) |
| Eyepiece barrel diameter, in | 1,25/2 |
| Objective lens obstruction: by area | 0 |
| Objective lens obstruction: by diameter | 23 |
| Finder | optical, 8x50 |
| Focuser | 2', Crayford, dual speed |
| Accessory tray | yes |
| Telescope control | manual |
| Mount | Dobsonian |
| Mount material | wood |
| Extra elements | cooling fan for primary mirror |
| Operating temperature range, °C | -5 — 35 |
| User level | experienced users, professionals |
| Assembly and installation difficulty level | complicated |
| Observed object | deep sky objects |
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