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Product Description
Product Description
Barlow lenses are concave or negative lenses that amplify or magnify the image produced by your telescope. They work by lengthening the converging cone of light from the scope, effectively increasing its focal length. Barlows allow you to use your lower power eyepieces with their greater eye relief at higher magnifications. They are also useful for getting larger image sizes for astrophotography.
The degree of magnification is known as the magnification factor. For Barlows it’s usually in the range from 1.5 to 3 and the most common value is 2. Such a lens is described as a 2x Barlow and will double the power of your eyepieces. A typical Barlow has a two-element achromatic lens at the end of a barrel that is 1-1/4” in diameter.
The Celestron Omni 2x Barlow lens has all these standard features and more, offering a high quality, low profile design which permits crisp, clear, high powered observation of the moon, stars and planets without breaking the budget. Easy to install and use by inserting into the eyepiece drawtube of the telescope and with blackened edges to minimise internal reflection and glare, it provides simple, honest, Celestron quality as promised.
Product Description
The Omni Barlow is a high quality 2x Barlow lens that doubles the magnification of all 1.25" eyepieces. This economically priced Barlow has great features like, low profile, 2-element fully-multicoated optical design and blacked lens edges.
Specifications:
- Magnification 2 x
- Size 1.25 in (32mm)
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Customer Reviews
Most Helpful Customer Reviews
18 of 19 people found the following review helpful
Amazon Verified Purchase
I recently bought a Celestron Astromaster 130EQ telescope and although looking at the likes of the Moon was fun, I was disappointed that I couldn't see that much detail on the surface.
On arrival this lens looks impressive and appears to be well engineered. It is essentially a metal tube, open at one end, with a lens at the other. You insert your chosen eyepiece into the open end, screw it into place so that it doesn't wobble, and insert the Barlow lens into the focus tube... and that's it. When I look at the Moon through the Celestron's supplied eyepiece I can see the entire Moon, but when I combine it with this I can see a smaller area but in incredible detail. Then if I turn my attention to Jupiter without the Barlow it looks like a big star, but when I also use this I can just about make out the cloud bands and also see two of the moons.
If you've just bought a Celestron telescope and are a little disappointed with what you can see, try this!
On arrival this lens looks impressive and appears to be well engineered. It is essentially a metal tube, open at one end, with a lens at the other. You insert your chosen eyepiece into the open end, screw it into place so that it doesn't wobble, and insert the Barlow lens into the focus tube... and that's it. When I look at the Moon through the Celestron's supplied eyepiece I can see the entire Moon, but when I combine it with this I can see a smaller area but in incredible detail. Then if I turn my attention to Jupiter without the Barlow it looks like a big star, but when I also use this I can just about make out the cloud bands and also see two of the moons.
If you've just bought a Celestron telescope and are a little disappointed with what you can see, try this!
29 of 32 people found the following review helpful
By Mr. S. C. Warburton
VINE™ VOICE
Amazon Verified Purchase
For a beginner like me with only a few lenses I wanted to double my choice by using a Barlow x2 lens. The Celestron Omni did the trick and is a well made bit of kit. There are most expensive lenses out there,,,but this fitted the bill for me
3 of 3 people found the following review helpful
By Frasbo
Amazon Verified Purchase
I read on YouTube that getting a Barlow lens was a sensible thing to do as it added immediate flexibility to the lenses included with the telescope. The Barlow lens is of high quality and allows variations of magnification. Definitely worth buying just to see the shadows cast across the craters on the moon more closely.
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Most Recent Customer Reviews
5.0 out of 5 stars
added bonus
after buying this lens and thinking the quality was very nice i discovered you can unscrew the end of the lens and screw this directly into your eyepiece making more variations to... Read more
Published 1 month ago by ste nelson
5.0 out of 5 stars
Great
Our daughter saved up her birthday money to add this onto her telescope. It arrived when the nights were cloudy but the smile on her face when we had a clear night was fantastic.
Published 1 month ago by Mrs Suzanne Kay
3.0 out of 5 stars
Good barlow lens
Feels like a well built barlow and performs okay for the price if you're using eyepieces for a mid or low price range, like the omni ones or similar you don't need anything more,... Read more
Published 3 months ago by deano
5.0 out of 5 stars
Good lens
Nice quality lens, very well made and excellent optics when looking through it. You can add filters to it also giving the option of having filters on the eyepiece or / and on the... Read more
Published 3 months ago by bonnie_man
4.0 out of 5 stars
I forgot I bought this!
Not used it a lot then ... although this is more a comment on the recent UK weather than the product. Read more
Published 4 months ago by Steve Bosley
5.0 out of 5 stars
It works well enough
This multicoated 2x Barlow lens was mailed to me in a padded envelope. The item itself comes in a small zip lock bag that is inside a small thin cardboard box. Read more
Published 4 months ago by hkmark
2.0 out of 5 stars
Celestron 1-1/4 inch Omni 2x Barlow Lens
I found it didn't give the performance I expected particularly as it scored well and hence it was returned with the telescope
Published 5 months ago by C. Walker
4.0 out of 5 stars
Simply superb!
Purchased this not knowing what to expect due to the low price, been so busy recently and only had chance to try it out a few nights ago and.......... WOW!!! It's amazing. Read more
Published 14 months ago by C. D. Cotterell
4.0 out of 5 stars
Barlow lens
Lens appears well made, there is a loss of definition when using compared to using original lens on it's own but that is just an unfortunate fact of life. Read more
Published 15 months ago by Steve
5.0 out of 5 stars
To the stars
As usual this item was received by the due date, well packed and undamaged. The lens itself is of good quality with a metal body. Read more
Published 16 months ago by Val
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