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Astromania Barlow Lens 2X, 2 Inch ED Barlow Lens for Astronomical Telescope

Based on 107 reviews
Condition: New
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$62.99
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Availability: Only 8 left in stock, order soon!
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Arrives Saturday, Oct 31
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At a glance

Condition
New
Size
2X (ED)
Model
SKU_AM_BL2ED
Weight
11.46 oz
Focus Type
Manual Focus
Power Source
Manual Operation
Finderscope
Reflex
Works with
1.25 Inch Eyepiece, 2 Inch Eyepiece, Telescopes with 1.25-inch Focuser

Features 8

  • 2 inch ED 2x barlow lens delivers excellent image quality with high contrast; The ED glass means visible colour aberrations are reduced to a minimum with sharp image a top choice for planetary observation and astrophotography
  • All lens surfaces have been provided with multi-coated to reduce reflections for ensuring maximum transmission and crisp clear views; A professional-grade multi-coated barlow for high-contrast imaging with your telescope eyepieces
  • For astrophotography; sometimes more focal length is required in order to be seen at a reasonable size in the image especially for compact objects; there is also no shadowing apparent on small image format camera chips for big plus
  • Larger diameter has more scope for lenses; 2 inch diameter allows you to insert 2 inch eyepieces into this barlow with double magnification; Large lens diameter also means will notice no shadowing in the image perfect for 2" telescope focusers

Specs 22

Brand Astromania
Model Name RM
Eye Piece Lens Description Barlow
Objective Lens Diameter 50 millimeters
Telescope Mount Description Fixed Mount
Focus Type Manual Focus
Power Source Manual Operation
Finderscope Reflex

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 31

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

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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
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
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
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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