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Levenhuk Ra 250N F4 OTA

Levenhuk
Newtonian telescope. Primary mirror diameter: 250 mm.
  • Category: Telescope
  • Product ID: 50747
  • Country: PRC, controlled by Levenhuk, Inc. (USA)
  • Warranty: lifetime
  • Weight: 43 lb (19.5 kg)
  • UPC: 6900000507476
  • Package size (LxWxH): 43.7×19.3×16.9 in (111.0×49.0×43.0 cm)
  • Call us
    800-342-1706
  Levenhuk Ra 250N F4 OTA is a Newtonian telescope with a 250-mm primary mirror and a focal length of 1000 mm (f/4). This model is best-suited for astrophotography. The telescope tube is made of metal, following a more traditional design.... more

Levenhuk Ra 250N F4 OTA is a Newtonian telescope with a 250-mm primary mirror and a focal length of 1000 mm (f/4). This model is best-suited for astrophotography. The telescope tube is made of metal, following a more traditional design.

This telescope is fitted with the modern 2" dual-speed Crayford focuser. Linear ball bearings of this focuser provide for additional stability, and further reduce backlash. The 2'' large diameter thread on the focuser allows you to use accessories - including coma correctors - from other manufacturers, reduces vignetting and allows you to attach your camera with ease.The telescope tube has a built-in primary mirror cooling fan. Even though Levenhuk Ra 250N F4 OTA was designed with astrophotography in mind, it still performs wonderfully during celestial observations.

The kit includes:

  • Levenhuk Ra 250N F4 optical tube
  • Finder scope
  • Finder scope base
  • Cooling fan
  • Batteries kit (6 pieces)
  • User guide and lifetime warranty

Here you can find a list of celestial objects you can see with this telescope.

Find out the names of the most interesting celestial objects to observe here and here.

Astrophotography test shot made with Levenhuk Ra 250N F4 OTA:


First Light Antares

Optical design

Newtonian reflector

Optics material

BK-7 glass

Optics coating

quartz-protected aluminum

Primary mirror diameter (aperture), mm

250

Focal length, mm

1000

Focal ratio

f/4

Resolution threshold, arcseconds

0.55

Eyepiece barrel diameter

2", 1.25"

Finderscope

optical, 8x50

Focuser

2

Tube-mount assembly system

dovetail plate

Optical tube material

metal

Optical tube dimensions, mm
in

310x980
12.2x38.6

Optical tube weight, kg
lbs

13.3
29.3

Usage

General use product.
May be used by kids
over 3 years old.

Levenhuk Review:

Here you can find a list of celestial objects you can see with this telescope.

Find out the names of the most interesting celestial objects to observe here and here.

Astrophotography test shot made with Levenhuk Ra 250N F4 OTA:


First Light Antares

There are no recent reviews available for this product.

Levenhuk Ra 250N F4 OTA - Total: 5 Negative 0 Positive 5


Felix Hendrix (2015-08-17 04:55): Positive
I own this telescope and I have a question for you... What additional accessories will I need to connect my Canon 6D camera to this telescope? Levenhuk Customer Service:
To connect your camera to the Levenhuk Ra 250N F4 OTA you will need: Levenhuk 2x Barlow Lens with Camera Adapter - https://www.levenhuk.com/catalogue/accessories/levenhuk-2x-barlow-lens-with-camera-adapter/ and a special Canon M48 T-ring Adapter.

Javier Ruiz (2014-06-15 12:03): Positive
tell me please why telescopes with f/4 focal ratio are more expensive than f/5 telescopes? Levenhuk Customer Service:
Considering you compare this telescope with Levenhuk Ra 200N F5 OTA, it costs less because of the smaller lens diameter.

john dean (2013-12-19 05:11): Positive
what is the appropriate tripod to use with the Levenhuk Ra 250N F4 OTA? Levenhuk Customer Service:
Dear John, thank you for interest in Levenhuk products! Unfortunately, we do not have the mount for this scope in stock. I'd recommend to consider the EQ6 mount. Is there any additional information you might need? Looking forward to your reply.

Michael Sanders (2013-11-12 10:21): Positive
I have a mount from OMNI XLT? Can it hold this tube without any damage? Are two regular counter weights enough? Levenhuk Customer Service:
This mount can support the weight of Levenhuk Ra 250N F4 OTA, but there is a risk of damaging the mechanisms. The mount is designed for 26-28 lb, and Levenhuk Ra 250N F4 OTA weighs 43 lb. It's recommended to use EQ6 mounts and not lower.

Francis Daubner (2013-04-22 09:06): Positive
What mount should be used with this tube and how much does it weight? Is it possible to set it up on a computerized GO TO mount? Thank you Levenhuk Customer Service:
You can mount this tube on an equatorial mount as well as on a GoTo mount if the mount has an appropriate payload. This tube weighs 43 lbs. with the box.

Submit your question or review on Levenhuk Ra 250N F4 OTA: