The Levenhuk Ra 200N F5 OTA is an optical tube for deep space exploration. It is a powerful large-aperture Newtonian reflector that can be used both for classic observations and astrophotography. This optical tube without a mount (OTA, Optical Tube Assembly) will prove to be an excellent tool for any amateur astronomer, as it allows viewing many nebulae, galaxies, and various star clusters, as well as lunar craters, dust storms on Mars, Saturn’s rings, and even Jupiter’s Medicean moons. It is possible to observe a large number of astronomical objects in detail.
The telescope’s optical design is based on a primary mirror with a diameter of 200 mm. The mirror is coated with an aluminum coating. Its reflection coefficient is 92~96%. The transmitted image is clear and crisp, and no optical distortions appear even at maximum magnification. On the rear side of the telescope tube, there is a cooling fan. It almost doubles the speed of the temperature stabilization process. It makes it possible to reach thermal equilibrium between the mirror and the ambient temperature much faster than in other telescopes. This is very important if the optical tube is stored in a heated room and taken outside for observations. The fan is battery-powered (batteries sold separately).
Sharpness is adjustable with greater smoothness and precision compared to basic-level models. This advantage results from the use of a dual-speed Crayford focuser.
The optical tube is equipped with a set of standard mount clamps and therefore can be installed on most modern mounts.
Please note: mount, tripod, and eyepieces are not included.
Features:
- Optical tube with 200 mm diameter parabolic primary mirror
- Active cooling of optics for faster temperature stabilization
- Special aluminum coating with a reflection coefficient of 92~96%
- Large aperture, minimal optical distortion even at high magnifications
- Dual-speed Crayford focuser for precise focus adjustments
- Universal mounting system: compatible with almost all mounts
The kit includes:
- Telescope optical tube
- Finder scope 8x50 mm
- Base for the finder scope
- Dovetail plate
- Tube rings (2 pcs.)
- 35 mm extension tube
- Cooling fan
- User manual and lifetime warranty
| Brand | Levenhuk Inc., USA |
| Warranty, years | lifetime |
| EAN | 5905555002583 |
| Package size (LxWxH), cm | 102x41x35 |
| Shipping weight, kg | 14.36 |
| Optical design | reflector |
| Optical scheme | Newtonian |
| Optics material | BK-7 |
| Lens coating | aluminum |
| Primary mirror diameter (aperture), mm | 200 |
| Lens shape (mirror) | parabolic |
| Focal length, mm | 1000 |
| Maximum usable magnification, x | 400 |
| Aperture ratio | f/5 |
| Limiting apparent magnitude | 13.61 |
| Eyepiece barrel diameter, in | 1,25/2 |
| Objective lens obstruction: by area | 0 |
| Objective lens obstruction: by diameter | 35 |
| Finder scope | optical, 8x50 |
| Focuser | 2', Crayford, dual speed |
| Telescope control | manual |
| Extra elements | cooling fan for primary mirror |
| Operating temperature range, °C | -5 — 35 |
| Optical tube mounting method | dovetail plate |
| Dovetail attachment | yes |
| Optical tube material | metal |
| User level | experienced users, professionals |
| Assembly and installation difficulty level | easy |
| Observed object | deep sky objects |
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