Levenhuk Ra LER 3mm, 1.25" Eyepiece

Planetary eyepiece with long eye relief. Focal length: 3mm. Field of view: 55°

7 elements in 4 groups, Long Eye Relief

Optical design is a set of optical elements that is assembled in a certain way

1.25

The barrel diameter of the accessory must match the barrel diameter of the device; otherwise, an adapter will be required

Fully multi-coated

The optics coating improves the image quality

Availability

Product ID	35010
Brand	Levenhuk, Inc., USA
Warranty	2 years
EAN	5905555006383
Package size (LxWxH)	14x7x6 cm
Shipping Weight	0.34 kg

Description

Levenhuk Ra LER 3 mm is a short-focus eyepiece for planetary observations. It is a great accessory for Newtonian reflectors, catadioptrics, and apochromatic refractors. In general, it is a universal eyepiece compatible with a wide variety of optical systems. It features a good field of view and does not distort the rendered picture. The quality of the rendered image is high: there are no field aberrations or magnification chromatism.

The eyepiece's fully multi-coated optics are made of glass. The eye relief is sufficient to cover the entire field of view. The eyecup is made of rubber, and it can be folded or unfolded, if necessary. The body is made of aluminum.

The eyepiece can be installed on any telescope with a 1.25" focuser.

Features:

Multi-element fully multi-coated glass optics
Minimum chromatic aberration and spherical distortion, especially in the center of the field of view
Short focal length - ideal for observing planets
It does well with apochromatic refractors and high-aperture Newtonian reflectors.
Suitable for 1.25'' focusers

The kit includes:

Eyepiece
Protective caps – 2 pcs
Cleaning wipe

Specifications

Product ID	35010
Brand	Levenhuk, Inc., USA
Warranty	2 years
EAN	5905555006383
Package size (LxWxH)	14x7x6 cm
Shipping Weight	0.34 kg
Type	standard
Optical scheme	7 elements in 4 groups, Long Eye Relief
Barrel diameter, in	1.25
Optics material	optical glass
Lens coating	fully multi-coated
Focal length, mm	3
Field of view, °	55
Eye relief, mm	20
Suitable for observations while wearing glasses	✓
Eyepiece diameter, mm	20.6
Body	aluminum
Eyecup	rubber, foldable
Protective caps included	✓

References
and downloads

High-resolution images (zip)

(ZIP, 9.77 Mb)

click to
download

Questions and Answers

Lance Yates (2015.12.14)

hi! Is it suitable for Sky-Watcher BK 1149EQ2? Is it in stock right now? Thank you!

Customer service:

Unfortunately, Levenhuk Ra LER 3 mm Eyepiece is not suitable for use with your telescope. It is better to use 4mm or 5 mm eyepiece to obtain the highest practical power of the instrument.

Ken Reese (2015.11.23)

does this eyepiece fit Sky-Watcher BK 705AZ3?

Customer service:

Unfortunately, it doesn't. Using this eyepiece with your telescope, you will exceed the maximum useful magnification of the model. Images will get blurry.

Rick Ritter (2015.09.02)

Hi there, is this eyepiece suitable for iOptron Astroboy? Image quality will be alright? Maybe it's better to take a 4-mm one?

Customer service:

Levenhuk Ra LER 3 mm Eyepiece is suitable for your telescope. Together they will give you 120x, which is the maximum useful magnification of the instrument. Using a 4-mm eyepiece, you will be able to obtain 90x magnification. Both eyepieces do not affect the picture quality.

Neil Shea (2015.08.20)

Hello! Will this eyepiece fit my Synta Sky-Watcher BK P13065EQ2? If I got it all figured correctly, the magnification will be 216x, right? And one more question... if we are talking about quality, does this eyepiece win in comparison with standard eyepieces from the kit? Maybe you could recommend some other eyepieces? Thanks in advance!

Customer service:

Yes, Levenhuk Ra LER 3 mm Eyepiece is suitable for use with your telescope. But, unfortunately, it is not available for purchase at the moment.

Darrel (2015.08.05)

Is this eyepiece suitable for synta sky-watcher Dob 10? Will I get quality, sharp views observing galaxies and nebulae (Andromeda, Whirlpool, Ring Nebula), comets? For example, with 2.3mm eyepiece images are very blurry.

Customer service:

The maximum useful magnification of your telescope is 508x. With Levenhuk Ra LER 3 mm Eyepiece you will get 400x, therefore, the eyepiece is suitable for this telescope model, images will be sharp.

Danial Reilly (2015.06.05)

Hello! If I use this eyepiece with Meade ETX-80AT-TC (focal length 400mm) I will get 130x, right? So is it suitable for my telescope? Thanks!

Customer service:

If you use Levenhuk Ra LER 3 mm Eyepiece you will get 133x magnification power. The highest practical power of the instrument is 160x. Yes, this eyepiece is suitable for this telescope model.

Lucas Gough (2014.05.22)

Hello! Do you have this eyepiece in stock at the moment?

Customer service:

No, we do not have this item in stock, but you can always contact us to preorder desired product by filling out this form https://eu.levenhuk.com/company/contact-us/

Martin Holland (2014.02.09)

I have synta sky-watcher dob 8. According to my calculations, this eyepiece will allow me to achieve 400x magnification, ie the maximum useful magnification of this instument. But I'd like to hear your expert opinion first. So... is it suitable for my telescope? If yes, how will it affect image quality? thanks in advance!

Customer service:

Levenhuk Ra LER 6 mm Eyepiece is perfect to get the highest practical power of your instrument. But you should be aware that image looses in brightness and contrast when observing with extreme magnification like in your case.

Sarah Stratman (2013.05.31)

How many x does it provide on Levenhuk Ra 250N Dob?

Customer service:

When installed on Levenhuk Ra 250N Dob Levenhuk Ra LER 3 mm Eyepiece provides the magnification of 420x.

Submit your question/feedback