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Newtonian telescope with a built-in primary mirror cooling fan. Aperture: 304 mm. Focal length: 1520 mm

Optical design
Aperture – the diameter of the light-collecting lens (refractors and catadioptric) or mirror (reflectors) that the telescope uses to collect light
Focal length – the distance from the primary lens or mirror to the point at which the light is focused

Product ID 50750
Brand Levenhuk, Inc., USA
Warranty lifetime
EAN 5905555002620
Package size (LxWxH) 61.4x22.8x19.3 in
Shipping Weight 108.4 lb

It is difficult to overestimate the capabilities of the Levenhuk Ra 300N Dobson telescope. With this telescope, you can see thousands of objects in the night sky, many of them in detail. Only the weather or an unfavorable state of the atmosphere can spoil the rendered picture. However, in good conditions, it will show many astronomical beauties. All objects of the NGC catalog, the Moon, planets of the Solar system with satellites, comets, etc. are available for observation. The telescope is ideal for conducting astronomy observations in the countryside and will be a good choice for both a beginner and an experienced astronomer.

Parabolic primary mirror with an aluminum coating

The primary mirror diameter is 300mm. It is parabolic, so optical distortion is minimized. The optics create a clear picture up to the maximum magnification. The aluminum coating has a reflectivity index of 92~96%. The optical component of this telescope is truly unrivaled. In addition, it features a dual-speed Crayford Focuser so that the focus can be smoothly adjusted.

Active cooling of optics for faster temperature stabilization

There is a cooling fan on the back of the telescope tube. It is used to speed up the process of temperature stabilization. Under normal conditions, it can take several hours for the optics to equalize with the ambient temperature. However, active cooling will almost halve this time. The fan is powered by batteries (purchased separately).

Dobsonian mount with an improved brake system side bearing for smooth tube movement

The Dobsonian mount has been significantly improved in comparison with the classic mounts of this type. A special brake system side bearingallows you to move the optical tube smoothly. You can move the optical tube a few centimeters up or down when using heavy eyepieces or an optional finder. There are scales on the mount sides for convenient balancing. The bearings have a more robust design, and so they will run smoothly throughout their entire service life.

Quick start kit

Besides the optical tube and mount, the kit includes a 9mm eyepiece, 30mm eyepiece, and 8x50mm finder. They will allow you to start observations right away.


  • Newtonian reflector with a 300mm primary parabolic mirror
  • Special aluminum coating with a reflectivity index of 92~96%
  • Active cooling for faster temperature stabilization and battery operation
  • Dual-speed Crayford focuser for precise focus adjustments
  • Easy-to-use Dobsonian mount, brake system side bearing for smooth tube movement
  • Minimum optical distortion, high aperture, and user-friendly design

The kit includes:

  • Telescope optical tube
  • Dobsonian mount
  • Plössl 9mm eyepiece
  • Super View 30mm eyepiece
  • Finder 8x50mm
  • Finderscope base
  • Cooling fan
  • User manual and lifetime warranty
Product ID 50750
Brand Levenhuk, Inc., USA
Warranty lifetime
EAN 5905555002620
Package size (LxWxH) 61.4x22.8x19.3 in
Shipping Weight 108.4 lb
Optical design reflector
Optical scheme Newtonian
Optics material BK-7
Optics coating aluminum
Primary mirror diameter (aperture), in 12
Secondary mirror obstruction, in 2.8
Lens (mirror) shape parabolic
Focal length, in 59.8
Highest practical power, x 608
Aperture ratio f/5
Resolution threshold, arcseconds 0.456
Limiting stellar magnitude 14.9
Eyepieces Plössl 9mm (168x), Super View 30mm (50x)
Eyepiece barrel diameter, in 1.25/2
Objective lens obstruction: by area 0
Objective lens obstruction: by diameter 23
Finderscope optical, 8x50
Focuser 2", Crayford, dual-speed
Accessory tray
Telescope control manual
Mount Dobsonian
Mount material wood
Additional primary mirror cooling fan
Operating temperature range, °F 23...+95
User level experienced users, professionals
Assembly and installation difficulty level complicated
Observed object deep-sky objects
Questions and Answers
Dawn Harlow (2015.01.15)
Hello, what is the optical tube of this telescope made of?
Customer service:
The optical tube of the Levenhuk Ra 300N Dob telescope is made of metal.
Ivan Ayers (2014.12.19)
Hello! Is this model available at the moment? And tell me also what the telescope's dimensions are? Is it too bulky?
Customer service:
The dimensions of the Levenhuk Ra 300N Dob telescope are 66.9?20.5?20.5 in. Yes, it is rather cumbersome instrument.
Lonnie Bauer (2014.12.14)
Do you have some drives or autoguiding systems for this telescope?
Customer service:
Unfortunately we don't have such accessories for Levenhuk Ra 300N Dob Telescope at the moment.
Ramon (2014.06.16)
What tools are included in the assembly kit? Which eyepieces, filters and lenses should I buy additionally?
Customer service:
All necessary instruments are included in the kit. We recommend you consider Solar System Levenhuk F4 Filter Set - .
Richard Kim (2014.01.14)
In how many boxes it gets packed? And please tell me the weight and dimensions. I need this information for transportation of this telescope, it's sooooo big!
Customer service:
Levenhuk Ra 300N Dob Telescope comes in two boxes. The total package weight is 94.8 lb. The total package size (LxWxH): 66.9?20.5?20.5 in.
brittany garcia (2014.01.09)
Hello! Do you have this telescope in white?
Customer service:
Unfortunately, Levenhuk Ra 300N Dob Telescope doesn't come in white color.
Kerri Perkins (2013.05.15)
One more question: what is needed for astrophotography with this telescope?
Customer service:
For astrophotography you will need an SLR camera and special adapter, which should be chosen according to the particular camera model. An easier way is to use digital cameras for telescopes:
Dillon (2013.04.29)
Ok I can see that it has cooling system, it's cool ;) but what about build quality and optics quality? I've seen some astrophotography test shots online and it seems that this scope provides images of very good quality, is it so?
Customer service:
Yes, the build and optics quality of the Levenhuk Ra 300N Dob telescope are on the high level as well as the quality of provided images.
Jaime (2013.04.12)
What can I see through this telescope? The images will be inverted, am I correct?
Customer service:
Yes, provided images are inverted. With this telescope you can observe the following:

Binary stars with the separation between their components of more than 0.5”
Faint stars up to 15 stellar magnitude
Lunar features of less than 1 mile size
Details on Mars, Phobos and Deimos if you are lucky enough
Details in the Jupiter atmosphere
Encke Gap within the a ring of Saturn
Neptune's largest moon Triton
Pluto as a small faint star
Thousands of galaxies, star clusters and nebulae
Almost every NGC catalogue objects. You may be even able to discern colors of the brightest nebulae

Don't forget that the atmospheric environment heavily affects the visibility of any given observed object.
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