Levenhuk Ra 250N Dobson Telescope

The Levenhuk Ra 250N Dobson is a Newtonian reflector with a primary mirror diameter of 250 mm. The two optics allow detailed observation of thousands of deep-sky objects that cannot be seen with small-aperture telescopes. This telescope can also be used for exploring cosmic space. For example, you can observe small structures on the surface of Mars, details of Jupiter’s atmosphere, the Encke division within Saturn’s rings, and even Triton, one of Neptune’s satellites. It is an excellent optical instrument for space observation and is particularly suitable for countryside trips.

Parabolic primary mirror with active cooling of optics

The parabolic primary mirror creates a clear and distortion-free image, even at extreme magnifications. Its surface is coated with aluminum reflecting 92~96% of the incident light, improving image quality. Thanks to the Crayford two-speed focuser, focus can be smoothly adjusted.

The primary mirror is equipped with a battery-powered cooling system (batteries sold separately). When any telescope is moved from a warm room to cold outdoors and vice versa, its optics take several hours to "reach temperature". The built-in fan speeds up achieving thermal equilibrium, almost halving the required time.

Stable and reliable Dobsonian mount with side bearings featuring a braking system for smoother tube movement

The Dobsonian mount is easy to assemble and handle. It reliably supports the optical tube and allows prolonged observations with maximum comfort. The mount mechanisms have been improved. Now the tube movement is smooth, making it more comfortable to track objects even at high magnification.

Special side bearings with braking system for smoother tube movement allow the optical tube to be moved a few centimeters up or down. Graduated scales are present on the sides of the mount for more practical balancing. Additionally, the bearings have a sturdier design (compared to conventional ones) and will provide great smoothness throughout their entire service life.

Ready-to-use kit

The telescope kit includes basic accessories needed to start observing immediately. The 9 mm and 30 mm eyepieces are ideal for a first introduction to deep space. The 8x50 mm optical finder is used to locate celestial objects.

Features:

• Large-aperture reflector, ideal for deep space observations
• Parabolic primary mirror: no distortion even at extreme magnification
• Special aluminum coating with 92~96% reflection coefficient
• Active cooling of optics for faster temperature stabilization
• Dobsonian-style mount, easy to assemble and use
• Crayford two-speed focuser, side bearings with braking system for smoother optical tube movement

Kit includes:

• Telescope optical tube
• Dobsonian mount
• Plössl 9 mm eyepiece
• Super View 30 mm eyepiece
• 8x50 mm finder
• Finder base
• Cooling fan
• User manual and lifetime warranty