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Astromania

Astromania 2" ED 2X Dual Power Telescope Barlow Lens for Telescopes

    • Based on 288 reviews
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Availability: 19 left in stock
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Arrives Tuesday, May 21
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Size: 2" ED 2x High-quality Dual Power


Features

  • More aperture for your photography and observing: The Astromania 2" Barlow lens provides a good image with high contrast. The use of ED glass means that visible colour aberrations are reduced to a minimum with the image appearing substantially sharper. In addition, all lens surfaces have been provided with a green multi-coating to reduce reflections.
  • Astrophotography with the Barlow lens: You can also use the Barlow lens for astrophotography. Especially for compact objects, sometimes more focal length is required in order for them to be seen at a reasonable size in the image. The big plus: There is also no shadowing apparent on small image format camera chips.
  • Larger diameter - more scope for your lenses: The 2" diameter also allows you to insert your 2" eyepieces into the Barlow, doubling their magnification. This saves the need to buy additional eyepieces. The large lens diameter also means you will notice no shadowing in the image.
  • Ergonomically designed: Naturally, clear starry nights can be cold in summer. This often means there is no choice but to wrap up warmly. This Barlow lens has been designed with a high grip exterior to provide a good grip, meaning that it is easy to handle securely even with gloves on.
  • Still more possibilities: One does not always need the focal length to be doubled. It is also possible to use just one section of this Barlow lens in order to get a magnification factor of something like 1.5x. The lower Barlow element can simply be unscrewed and then screwed into any 2" eyepiece. This Barlow element is correctly threaded for this purpose. There is a 2" filter thread provided on the lower part of the Barlow lens and on the reducer adapter for using your filters.

Brand: Astromania


Eye Piece Lens Description: Barlow


Objective Lens Diameter: 25 months


Focus Type: Manual Focus


Finderscope: Reflex


Item Weight: 11.46 Ounces


Lens Coating Description: Multi-Coated


Eye Piece Lens Description: Barlow


Objective Lens Diameter: 25 months


Focus Type: Manual Focus


Finderscope: Reflex


Lens Coating Description: Multi-Coated


Brand: Astromania


Item Weight: 11.46 Ounces


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Very High Quality Barlow, Highly Recommended !
Size: 2" ED 2x High-quality Dual Power
Review Image by Herb H Herb H
Review Image by Herb H Herb H
Review Image by Herb H Herb H
Review Image by Herb H Herb H
Review Image by Herb H Herb H
Review Image by Herb H Herb H
I used it to double the focal length of my SVbony 80ED scope, and it worked amazingly well. On the SVbony 80ED with 0.8x Flattener the backfocus needs to be around 102mm. Some pictures I took with it are shown below. Five stars !
Reviewed in the United States on October 1, 2023 by Herb H Herb H
    • Very sharp images and wide FOV
Size: 2" ED 2x High-quality Dual Power
Wide FOV is of course with eyepiece, but I was prepared to sacrifice it for more magnification and was very pleased that I did not lose on FOV, not perceptibly! The fit of my 2in eyepiece was very tight and I was worried the size was wrong... Had to force and twist, but in the end, very satisfactory result. ... show more
Reviewed in the United States on October 30, 2023 by T.A. Kisyak
    • Quality vs price.
Size: 2" ED 2x High-quality Dual Power
I’m pleased with the quality for the price
Reviewed in the United States on April 17, 2023 by richard webb
    • GREAT VALUE !
Size: 2" ED 2x High-quality Dual Power
I ordered this for my 10" DOB trust rod telescope. Well constructed product. Very happy with the quality.
Reviewed in the United States on October 27, 2023 by Ray M.
    • Bad Vignetting (hot spot in center, falloff on edges)
Size: 1.25" 3x Short Focus
Review Image by Jay S Jay S
Review Image by Jay S Jay S
I received the "new" version, but was disappointed with the vignetting. See the attached flat field image and daytime moon image which shows the (quite bad) hotspot in the center. It does provide the advertised 3X magnification, and I thought that perhaps the hotspot was an artifact of zooming my telescope that much, but later when I compared it to a 3x teleconverter I found that the hotspot was entirely the fault of the Astromania 3X barlow. If you decide to buy it anyways, note that it is "short focus" so you may need an extender depending upon your optical path to pull focus. ... show more
Reviewed in the United States on August 15, 2023 by Jay S Jay S
    • Scratched!
Size: 2" ED 2x High-quality Dual Power
Review Image by Brian Brian
Review Image by Brian Brian
It’s 3 stars just for this item not the whole store. I just received this in the mail about 10 minutes ago. Opened the package and the box was damaged, I opened the box and the lens was packaged well on the inside. However when I opened the inside packaging and took the covers off I see these scratches! I got back on here and did a product exchange and the replacement is due to arrive in just 2 days when this one took about 5. So I’m happy they expedited shipping on the replacement. The quality of the rest of the Barlow very good. Seems sturdy and well made. I can’t comment on how well the lens actually is at this time but I’m sure it will be just fine on the replacement. Over all, anything I’ve ever bought from astromainia has been great for the price. This will not stop me from buying from them. At least not yet. Update: The new one came in and it’s not scratched. ... show more
Reviewed in the United States on September 19, 2023 by Brian Brian
    • A customer made mistake
Size: 2" 2.5x Barlow Lens
The product enabled me to use a 2" eyepiece on a 1.25" telescope. My telescope is 1.25" and I needed this adapter to enable me to accommodate a 2" 2.5X Astromania Barlow lens on my 1.25" telescope. When the items arrived I tried it on the telescope and I couldn't get the Barlow lens to focus no matter what I did. I tried it on terrestrial which usually works quite well but it still didn't focus so I figured the setup I had was incompatible with a 1.25" telescope and sent it back asking for a refund. Now the product itself was fine. I'm sure it works great with a 2" telescope. The construction of the lens/adapter was great. It felt like it was made of metal; however, it was rather heavy as if it was made for a much bigger more expensive telescope. My telescope was neither. Like I said it was my mistake ordering something that I felt might not work with what I had. Would I recommend it to others? Yes. I'm sure it would work great on a larger, better-designed 2" telescope. Also, customer service was great and they issued a prompt refund once they go a notification from Khols (one of their drop-off points) that the items were turned over to them for shipping. Great job AMAZON!! ... show more
Reviewed in the United States on December 16, 2021 by Amazon Customer
    • Astromania achieves quality and value at a modest cost
Size: 1.25" 3x Short Focus
This is a review on the general quality of astromania products. I have purchased a focal reducer, a double helix focuser, a 3x barlow and a UHC filter. The material quality of these products is exceptional, in their machanical design and manufacture. They are well built, sturdy, perform their function well, and if used properly will last at least as long as any of these products made by any top shelf competitors. That said, their actual optical performance is, in my experience ( I am a retired electrical engineer not trained in such things, however, I am a somewhat experienced amateur astronomer) adequate for my eyes ( I've used those eyes for 65 years so I've learned not to expect miracles from my optics) . However they are comparable with higher priced competitors, within my ability to judge these things. Now, if you want to compare their products with top shelf manufacturers of optics ( Astromania's hardware by itself, is top notch) costing as much as 3x's the price, they will invariably fall short. This is a comparison that should really not be made. Of course, high end optics are materially ( high quality optical lenses, and their coatings are costly) and technically (research & development costs $), labor intensive. And as much as I believe that these high end manufacturers are trying to be competitive, I am forced to conclude that there is a real gap in designed specs & cost such that a comparison cannot, and shouldnt be made. Bottom line, I am satisfied that I'm getting value for my $ . I would encourage others to as least check into their products and see themselves. ... show more
Reviewed in the United States on December 30, 2019 by Mickz

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