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Levenhuk Ra R80 ED Doublet OTA

Levenhuk
Apochromatic refractor. Objective lens diameter: 80 mm. Focal length: 500 mm.
  • Category: Telescope
  • Product ID: 50955
  • Country: PRC, controlled by Levenhuk, Inc. (USA)
  • Warranty: lifetime
  • Weight: 15.4 lb (7.0 kg)
  • UPC: 6900000509555
  • Package size (LxWxH): 22.8×14.6×8.7 in (58.0×37.0×22.0 cm)
  • Call us
    800-342-1706
  Levenhuk Ra R80 ED Doublet OTA is a high-quality refractor with an objective lens diameter of 80 mm (3.2 in) and a focal length of 500 mm (19.7 in). The fully multi-coated apochromatic lenses - made of ED glass with extra-low dispersion - reduce chromatic aberration and produce bright views across the field of view as a result. ... more

Levenhuk Ra R80 ED Doublet OTA is a high-quality refractor with an objective lens diameter of 80 mm (3.2 in) and a focal length of 500 mm (19.7 in). The fully multi-coated apochromatic lenses - made of ED glass with extra-low dispersion - reduce chromatic aberration and produce bright views across the field of view as a result.

The optical tube of the telescope and the body of the dual-speed Crayford focuser with the 2'' large diameter thread are coated with a special anodized finish, giving Levenhuk Ra R80 ED Doublet OTA an eye-catching gloss. The optical tube is fitted with a retractable dew cap that protects the objective lens from fogging and reduces the glare on the lens. The focuser accepts 1.25" eyepieces, which means that you can easily choose the best accessories that suit your requirements.

Levenhuk Ra R80 ED Doublet OTA comes in a sturdy aluminum case that makes storing and transporting this optical tube safe and easy.

Try your hand at astrophotography with Levenhuk Ra R80 ED Doublet OTA – simply connect your DSRL camera to the optical tube using a T-ring and T2 mount.

The back focus of the refractor is 135.3 mm (5.3 in). The distance between the back of your camera and the front of a T2 mount is 80.3 mm (3.2 in).

You can find a review on Levenhuk Ra R80 ED Doublet OTA here.

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.

Optical design

apochromatic refractor

Objective lens

two-element

Optics material

S-FPL53 ED + S-NBM51 glass

Optics coating

fully multi-coated

Objective lens diameter (aperture), mm

80

Focal length, mm

500

Focal ratio

f/6.25

Resolution threshold, arcseconds

1.45

Eyepiece barrel diameter

1.25"

Focuser

dual-speed Crayford focuser, 2

Tube-mount assembly system

quick-release thumbscrew

Optical tube material

metal

Optical tube dimensions, mm
in

100.5x390
4x15.4

Optical tube weight, kg
lbs

3.0
6.6

Usage

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

Levenhuk Review:

You can find a review on Levenhuk Ra R80 ED Doublet OTA here.

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.

There are no recent reviews available for this product.

Levenhuk Ra R80 ED Doublet OTA - Total: 6 Negative 0 Positive 6


John Larsen (2015-04-18 08:59): Positive
I've owned my Questar 3 1/2" standard since 1984, but have decided to buy a decent refractor for mostly terrestrial observing from my home. I have a SLIK Pro tripod. What mount/s does this model come with, and if I decide to take the plunge, can you help me select a "package" to include the diagonal and 2-3 decent lenses? Thanks a lot for your consideration. John L. Levenhuk Customer Service:
Hi John, Thanks for the query. Unfortunately, the Levenhuk Ra R80 ED Doublet OTA is currently out of stock and we do not expect it back any time soon. I'd recommend to check out Levenhuk Ra R80 ED Doublet Carbon OTA here at https://www.levenhuk.com/catalogue/telescopes/levenhuk-ra-r80-ed-doublet-carbon-ota/ This OTA does not come with a mount, it has a quick-release thumbscrew tube-mount assembly system. The highest practical power of this OTA is 160x. To find out what eyepiece is required to achieve it, you need to divide its focal length by the highest practical power (that's 500 divided by 160 in case of Ra R80 ED Doublet OTA). The answer is 3.13 mm and such eyepiece doesn't exist so you need to choose one of the closest, for example Levenhuk Ra 2" ED 35 mm Eyepiece.

robert (2015-03-15 07:40): Positive
I would like to know how much back focus the Ra R80 ED doublet has Levenhuk Customer Service:
Hello Robert, Thank you for interest in Levenhuk products. The back focus of our 80mm refractor is 135.3mm, the distance between the end surface to the fron surface of the T2 mount is 80.3mm. The Levenhuk Ra R80 ED Doublet OTA is currently out of stock, but we have the same model with carbon fiber tube. You can find it here online: https://www.levenhuk.com/catalogue/telescopes/levenhuk-ra-r80-ed-doublet-carbon-ota/ Looking forward to your reply.

bob (2014-08-23 03:07): Positive
you guys never answered glenns ?. about how this scope is for astrophotography. be it dslr or a ccd or cmos Levenhuk Customer Service:
Dear Bob, thank you for interest in Levenhuk products. Yes, this scope is perfect for astrophotography. You can use both CCD or DSLR camera with this scope. To attach a DSLR camera, you will need an appropriate T-ring and a camera adapter. CCD camera cab be simply inserted into the focuser. Is there any additional information you might need? Looking forward to your reply.

mansour kargari (2014-08-04 06:05): Positive
Hi, I'm interested in buying the Ra R80 ED Doublet OTA. Does the 2" focuser has graduated scale mark or not? Levenhuk Customer Service:
Dear Mansour, thank you for your interest in Levenhuk products. Yes, the 2'' focuser comes with the graduated scale mark. Is there any additional information you might need?

SEE KAM KWONG (2014-06-10 01:31): Positive
I am interested with Levenhuk Ra R80 ED Doublet OTA, I want to confirm that whether the ED glass is made of FPL-53 material? Levenhuk Customer Service:
Dear See Kam, thank you for interest in Levenhuk products! One ED glass is made of FPL53 ED and the other is NBM51. Is there any additional information you might need? Looking forward to your reply.

Glenn (2014-02-14 09:16): Positive
Good day. I wanna buy a telescope- I've always dreamed of observing space beauties by myself! This idea just haunts my mind. I'd prefer one up to $800, which can help me to see planets and deep sky objects. I am thinking about astrophotography in the future (I have Nikon D3100). I've read some articles on the internet and now I know that the most important thing about telescopes is aperture. Please tell me, isn't 80 mm too small? Is it better to purchase a telescope with bigger objective lens? If this model is fine for me, then what accessories I might need? Levenhuk Customer Service:
Levenhuk Ra R80 ED Doublet OTA Telescope is very good for lunar and planetary observations. As compared to the similarly priced models, this model provides images of better quality. For comfortable observations with this tube you will certainly need a mount: consider Levenhuk Ra ATZ Altazimuth Mount https://www.levenhuk.com/products/levenhuk-ra-atz-mount/ or Levenhuk Ra EQ5 GoTo Equatorial Mount https://www.levenhuk.com/products/levenhuk-mount-eq5-goto/. Eyepieces that come in useful for this telescope: Levenhuk Ra LER 3 mm Eyepiece https://www.levenhuk.com/products/eyepiece-levenhuk-ra-ler-3/; Levenhuk Ra LER 6 mm Eyepiece https://www.levenhuk.com/products/eyepiece-levenhuk-ra-ler-6/; Levenhuk Ra WA 82°, 16 mm Eyepiece https://www.levenhuk.com/products/eyepiece-levenhuk-ra-wa-16/; If you want a more universal model, consider the Levenhuk SkyMatic 105 GT MAK telescope: https://www.levenhuk.com/products/levenhuk_skymatic_105gt_mak/. It's suitable for both planetary and deep-sky observations.

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