GSO 1.25" 2x "Shorty" Achromatic Barlow Lens # GS2BL

5.0 Great performance & flexibility for a little price

Based on several earlier reviews, I decided to purchase the GSO 2x shorty barlow. I was not disappointed. It's given me a nice boost in my magnification and provided crystal-clear viewing. The added benefit of unscrewing the rear barlow lens and using it on one of my 1.25" eyepieces for bit of a bump is a cool feature.

This review was provided courtesy of AgenaAstro.com

5.0 Greatly improved my viewing of

Greatly improved my viewing of planets. Item quickly shipped.

This review was provided courtesy of AgenaAstro.com

5.0 Good barlow

Does exactly what it says. Very handy being able to take off the lense so you can put it on eyepeices or in front of the angle mirror for more magnification which I found out, or just to use the tube itself.

This review was provided courtesy of AgenaAstro.com

5.0 GSO 1.25" 2x "Shorty" Achromatic Barlow Lens # GS2BL fr

Works as expected.

This review was provided courtesy of AgenaAstro.com

5.0 It does what it is intended for

It's cheap and it works well.

This review was provided courtesy of AgenaAstro.com

4.0 Worth it for the price

A little on the cheap side due to plastic feel but at the price point it's perfect for newcomers like myself. The dual zoom levels are a nice feature as well.

This review was provided courtesy of AgenaAstro.com

5.0 Excellent value

Clear image quality. Couples perfectly between my Canon 60D with 1.25" adapter and the back of the Celestron 6SE.

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5.0 Great optics

Works as it should.

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5.0 Great Barlow

Great Barlow

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5.0 Well Crafted

The GSO 2x Barlow lens is machined very nicely, gives off a high quality appearance, and light in weight.

This review was provided courtesy of AgenaAstro.com

5.0 A barlow better than i expected!

It's a quality product which has a high price-performance ratio. The lens which has removable feature is an advantage. I used it with various eyepieces and I got a good result. Its the only fault is that its box is cheap.

Location: Turkey

This review was provided courtesy of AgenaAstro.com

4.0 Two barlows in one

Lightweight,Accurate,Compact,Strong Construction,Easy to Use,Quality Lenses

This is a lightweight well made barlow that can be used in the 1.5x or 2.0x mode. This gives you flexibility with your eyepieces but it involves unscrewing the barlow lens and attaching it to the bottom of the eyepiece. This can get a bit problematic in the dark. I found the quality of the image quite good in the 2x mode but not quite as good in the 1.5x mode. And the images in my older long 3x barlow were just a bit better than the performance of this shorty in either mode. I know I'm being picky but the longer barlows give better results. Still, it will give good results, especially considering the price. And because of its size it will work well in the diagonal of smaller scopes like refractors, sct's, and maks.

This review was provided courtesy of AgenaAstro.com

5.0 I'm really starting to love GSO

Compact,Lightweight,Strong Construction,Quality Lenses,Easy to Use

Most barlows have removable lens housings, but GSO is one of the few manufacturers to actually flaunt that. This is a great accessory for the price! This barlow does not exacerbate CA and even with a 40mm EP, eye placement is not critical! A little edge distortion? So what? If you're like me, you like to place objects in the centre of the field! Even when I use averted vision, I seldom reach the edge of the field. Want a wider field? Use a lower power! This barlow gives you lots of FOV options. I love it.

This review was provided courtesy of AgenaAstro.com

4.0 Great affordable barlow

Strong Construction,Lightweight,Easy to Use

Chromatic aberration

This is a decent barlow lens for its price. I originally purchased this barlow mainly to extend the focal length of my telescope (I have an f/5 reflector) for mounting my DSLR. Overall, I am satisfied with my purchase. I ended up using the barlow more for visual observing rather than photography. The neat thing about this barlow is that you can unscrew the bottom of it and attach that to your eyepiece for a lower magnification. This comes in handy when the atmosphere isn't cooperating.

The downside of this barlow is that even though it is achromatic, it still suffers from a bit of chromatic aberration, especially when looking at bright objects like Venus.

This review was provided courtesy of AgenaAstro.com

5.0 Excellent quality

High Quality Optics,Easy to Use,Quality Lenses

I use this as a 1.5x barlow by using only the lens with my Skyris 132m camera's nosepiece. It allows me to get higher magnification for solar imaging. I also screw the lens into my eyepiece to increase the magnification. Great quality and versatile.

This review was provided courtesy of AgenaAstro.com

5.0 Almost as good as my ES

Strong Construction,Easy to Use,Lightweight,Quality Lenses

Bought this for a new astronomer in the family. Before I give it to him, I tried it out on my ETX60 and 130SLT with my 25mm plossl. Used it on the moon and M42 and compared it against my ES 2X. This barlow stacked up well against the ES, had SMALL amount viginetting compared to the ES and I had to really look for it. About 1/3 the weight and 1/4 the price.
Gave it 5 stars because you can't beat the price/value.
Also like the idea of screwing the bottom element to an eyepiece. If you have a limited budget, you can triple the amount of eyepieces for very little money

This review was provided courtesy of AgenaAstro.com

5.0 Worth its weight in gold!

Lightweight,Accurate,Quality Lenses,Easy to Use,Strong Construction,Compact

Over the years I've purchased three of them from Agena for my Coronado 60mm SM, 10" f/6.3 Newt and to turn my Pentax XLs 7mm and 5.2mm into a 4.66mm and a 3.46mm respectively when the barlow element is used without the housing for 1.5X. The last configuration has saved me a lot of money as I didn't have to buy a Pentax XW 3.5mm and a Delos 4.5mm.

There is no image breakdown, takes up no space in the eyepiece case and it's very inexpensive.

In short, best accessory ever bought!

This review was provided courtesy of AgenaAstro.com

5.0 If I buy Telscope products it is from here

Easy to Use,Quality Lenses,Lightweight,Compact,Accurate,Strong Construction

It's a great product for sun looking moon watching everything that has to do with the stars, it makes me want to stand on my head and count greasy bb,s in alphabet order :)

This review was provided courtesy of AgenaAstro.com

5.0 Great for the price

Quality Lenses,Easy to Use

I've used it for a few months. For the price it can't be beat. Good clear aperture diameter, coatings look good, no apparent degradation of eyepieces. I've always had good service from Agena.

This review was provided courtesy of AgenaAstro.com

5.0 Works as advertised

Accurate

Heavy

Works so much better than the cheap barlows that come with telescopes or eyepiece combos - world of difference! (no pun). Amazing!

This review was provided courtesy of AgenaAstro.com

4.0 Top Barlow for less money

Quality Lenses,Compact,Strong Construction,Easy to Use,Lightweight,Dual Barlow,Accurate

No Brass Ring

My favorite Barlow! If you don`t need 2x magnification, you can screw the barlow cell directly into 1.25" eyepiece and get 1. 5x of magnification. e.g If you have big bulky eyepices like Celestrons Ultima LX as I have or similar, you can screw the Barlow cell, to get the little extra magnification.

This review was provided courtesy of AgenaAstro.com

5.0 Excellent quality

Strong Construction,Quality Lenses

Excellent build quality and flawless performance...and for a great price.

This review was provided courtesy of AgenaAstro.com

4.0 Very good product at a very good price

Quality Lenses,Easy to Use

Quality Lenses,Easy to Use

Like others are saying, this is a good quality barlow at a good price. I'm happy with the quality and I tend to leave it in all the time as I feel that 2x view is better then using the 90MM telescope without it. Seeing the rings of Saturn is very cool!

This review was provided courtesy of AgenaAstro.com

3.0 Good but not best

Strong Construction,Easy to Use

Difficult To Focus,Poor Lens Quality

Great item, low price, good quality, but nothing compared to high-end products.
I recommend it anyway, the price versus quality is really great!

This review was provided courtesy of AgenaAstro.com

5.0 Brilliant Barlow Lens

Lightweight,Compact,Strong Construction,Quality Lenses,Accurate

Best barlow lens I ever had. No picture degrading, no false color and best price in this range. Agenaastro delivered it very soon. Now looking to buy X3 GSO ED barlow.

This review was provided courtesy of AgenaAstro.com

4.0 Great price/performance

Easy to Use,Versatile,Lightweight,Quality Lenses

This is an inexpensive 2x barlow with a great price/performance ratio. High quality optics with a versatile design.

I like that you can unscrew the barlow lens and attach directly to the filter threads on your 1.25" eyepieces, which makes for a cost effective way to stretch a limited eyepice collection even further. NOTE: You may not have sufficient focus travel in this configuration -- this can be remedied any one of a number of ways. I just move the EP out a little, but I could also back out the 2" adapter in my focuser if I so chose. This allows me to use the 2x barlow on my 11mm EP (109x mag in my scope) to obtain 218x. If I find that is a bit too much for that night's seeing, I can attach the barlow lens directly to the EP for an approximate 1.5x mag, yielding a much more commonly usable 163x (approx.). There are very many nights that the 1.5x sees use, making this a valuable feature to have.

I more recently acquired a 6.7mm EP that, natively, yields approximately 179x in my scope. I've compared my 11mm + barlow lens, at approx 163x and found that, other than the minor magnification difference, the visual quality is relatively indiscernible. This gives me confidence to use the barlow in both the 2x and 1.5x configurations, matching the magnification to what is best for any given night, if I'm looking to push the power beyond what my EP's can do on their own.

If I had to knock this product at all, it would be the overall build quality. It's not built like a tank. It's a lightweight tube with some glass. The barlow lens 'squeaks' when being unscrewed/screwed. The horror. For the cost, these aren't fair nits to pick. I gladly accept these in exchange for the excellent optical performance at a remarkably low cost.

Overall, I'm very happy with this inexpensive barlow and I would buy another without hesitation, should I ever need to.

This review was provided courtesy of AgenaAstro.com

4.0 A good buy!

Strong Construction,Lightweight,Compact,Easy to Use

Came highly recommended on Cloudy Nights Forums, with good reason. Well made, works well.

This review was provided courtesy of AgenaAstro.com

4.0 I would buy this product again

Easy to Use,Strong Construction,Quality Lenses,Lightweight,Accurate

I use this on a telescope and it provides sharp stars across 90% of the field of view. Mutch better than I expected for the price. I recommend it for any body.

This review was provided courtesy of AgenaAstro.com

5.0 Great Value

Versatile,Strong Construction

So far I've used this for Sun and Planet viewing, and the views are great. I find I use the detachable lens for 1.5 magnification more than I use the complete barlow. The versatility is great. Most barlows double your eyepiece collection. This one triples it.

This review was provided courtesy of AgenaAstro.com

5.0 This ain't you regular 2x Barlow

Strong Construction,Accurate,Lightweight,Quality Lenses,Easy to Use

This baby lets you downgrade to 1.5X on nights that don't allow you to use 2X on your high power or favorite eyepiece. It's 2 Barlow lenses in one, unscrew the base lens and just screw that into the bottom of your eyepiece and your at 1.5 instead of 2. It is like having three Delos eyepieces without paying for three! Best solution to a Barlow ever invented!

This review was provided courtesy of AgenaAstro.com

5.0 Great barlow

Easy to Use,Lightweight,Strong Construction

This barlow comes highly recommended on several astronomy forums, and I see why. This is a great barlow, and I especially like that you can remove the endpiece and thread it onto an eyepiece for 1.5x

This review was provided courtesy of AgenaAstro.com

5.0 Best Barlow out there

Strong Construction,Multi uses,Functionality,Quality Lenses

This is the best Barlow out there. Not only does it funtion perfectly as a 2x Barlow providing views with clarity and sharpness, but the bottom lens cell can be used alone as a 1.5x Barlow. I actually use the lens cell alone more than I do the entire assembly. A great product at prices you can afford, that's usually the case with Agena Astro.

This review was provided courtesy of AgenaAstro.com

5.0 Great Quality and Design

Strong Construction,Versatile

None

Easy to use, fantastic value, would recommend to anyone wanting to triple their eyepieces at a low cost.

This review was provided courtesy of AgenaAstro.com

5.0 GSO 1.25" 2x Achromatic Barlow Lens

Strong Construction,Lightweight,Quality Lenses,Accurate,Compact,Easy to Use

Lightweight, well constructed, clever design with the removable lens for 1.5x or 1.6X. Like any good Barlow, you don't really know it is there. Only drawback is it uses a set screw rather than a compression ring. Should at least come with an nylon set screw along with the metal one. Excellent value!

This review was provided courtesy of AgenaAstro.com

4.0 One of the best cheap barlow, almost APO

Strong Construction,Quality Lenses,Easy to Use,Lightweight

I am sorry for my English...

It is a very usable barlow: like 2x, like about 1,5x and like corrector for binoviewer about 2,6X.
With only one object I have tripled my eyepieces! I have found a very good chromatic correction.

This review was provided courtesy of AgenaAstro.com

5.0 Best bang for the $$$

Strong Construction,Quality Lenses,Easy to Use

Great barlow. Love the fact it can be a 2x or 1.5x barlow. Like others, I find I screw the lens onto my eyepieces more than using it as a 2x. No issues viewing with this. The 2" will be next.

This review was provided courtesy of AgenaAstro.com

5.0 Better than expected!

Accurate

Great quality Barlow! I use it in combination with a 25mm @ 10 mm on a fast 5.9 1200mm Dobsonian and can tell you for the money Its impossible to beat.

This review was provided courtesy of AgenaAstro.com

4.0 Great Affordable Barlow.

Strong Construction,Accurate,Quality Lenses

None

I bought the barlow to increase the magnification of other GSO eyepieces I bought from Agena Astro, and it works like a charm. I'm very pleased with it and that there is no dimming of the image when used with an eyepiece. My set is now larger thanks to this awesome inexpensive barlow. Highly recommend.

This review was provided courtesy of AgenaAstro.com

5.0 A great budget barlow!

Image Quality, Construction, Removable Lens, Cost

none!

I was looking for a decent quality barlow at a budget price. After searching many reviews, I ended up deciding on this one. It's a transparent lens. I cannot detect any degradation in image quality at all.

The removable lens element is a great feature. You can stack this lens on top of your existing filters for 1.5x magnification (approx). This is great for when 2x is pushing the magnification too far. It gives you more options. And also, using a heavy wide angle EP with a barlow can make your configuration a little worrying. Using the removable lens doesn't increase the length of the stack.

The construction was also surprising. I was quite shocked to see that the entire EP was made from aluminium, no plastic. I honestly thought at this price there was be some cheap components but the whole product looks pretty solid.

If you're looking for a budget barlow, this is a good one!

5.0 A great budget barlow!

Strong Construction,Quality Lenses,Accurate,Compact

I wasnt expecting much from this barlow. Something of decent quality. The barlow is very tranparent. I can not see any degradation of the image through my set up. The removable bottom lens isnt a gimmick, its a very useful feature. Infact I use the bottom lens (stacked on top of my filters) more then the complete barlow!
If your after a good barlow, and you dont want to spend hundreds, give this one a try!

This review was provided courtesy of AgenaAstro.com

5.0 Excellent product, 2 in 1

Accurate,Compact,Quality Lenses,Strong Construction

Excellent product from GSO. Love the fact that I can use 2 in 1 with top quality for the money spent!

I mostly used the barlow lens cell with a big FOV EP and the images were sharp and clear!

This review was provided courtesy of AgenaAstro.com

5.0 Well made product at a good price

No

No

I researched a number of Barlows and this one had good reviews and a great price. I found it to be well made. The tolerances were tight. No play at all. Optics were fine.

This review was provided courtesy of AgenaAstro.com

5.0 Great Barlow

Compact,Accurate,Strong Construction,Quality Lenses

Super barlow for the money. Very nice coatings super sharp images.

This review was provided courtesy of AgenaAstro.com

5.0 Quality Barlow, Low Price

Accurate,Quality Lenses,Strong Construction

This is not a cheap barlow, it is very well made, with good optics. Very good quality for low price,highly recommended.

This review was provided courtesy of AgenaAstro.com

5.0 Great barlow

Quality Lenses,Strong Construction,Accurate,Compact

This barlow is simply great, I love the fact you can unscrew the lens and use on an EP and also use the tube as an extension tube if required.

You won't regret buying this barlow.

This review was provided courtesy of AgenaAstro.com

5.0 Excellent Barlow

Good quality,No visible light loss

None

This is a very nice barlow lens. I have owned it for almost a year, and have been very pleased with the views. The only complaint I can think of is I would prefer a plastic set screw instead of metal.

This review was provided courtesy of AgenaAstro.com

4.0 I would buy this product again

Strong Construction,Compact,Accurate

Sensitive lens coating

The great thing is that you can separate barlow in 2 pieces and use just lens for smaller magnification

This review was provided courtesy of AgenaAstro.com

4.0 Good starter barlow

Quality Lenses,Accurate,Compact,Strong Construction

Cheap strong and easy to use I like how simple it is and you can use it as an extension tube if you remove the lens element.

You get more than plenty for this barlows low price.

This review was provided courtesy of AgenaAstro.com

4.0 Good low-cost barlow

Quality Lenses,Strong Construction

This is a good low-cost barlow. I unscrewed the lens part and screwed it on one of my other lenses, like a filter, and it definitely improved the image

This review was provided courtesy of AgenaAstro.com

5.0 A great barlow lens

Quality Lenses,Compact,Strong Construction,Accurate

None

Great product...highest quality construction...very compact.
The removable lower lense can be used on any eyepiece or web type camera and the upper part makes a good extension tube when you need additional focuser travel.

This review was provided courtesy of AgenaAstro.com

3.0 Convenient but Squeaky!

Accurate,Convenient Feature

Squeaky

This is a barlow that is convenient for the purposes of unscrewing the lens assembly and rethreading it on an EP. Having this option is not something you can find with any barlow.

The downside to this unscrewing is the squeaking! I ultimately sold this barlow for this reason. I couldn't take the squeaky noise it made when I did undid the lower elements.

Pros: It worked fine and was convenient
Con: High-pitched noise was too much for me

This review was provided courtesy of AgenaAstro.com

4.0 Excellent views without the high price

Compact,Quality Lenses,Accurate,Strong Construction

Works great in my spotting scope with low power eyepiece

This review was provided courtesy of AgenaAstro.com

4.0 Great Barlow: Great Value

Strong Construction,Accurate,Quality Lenses

Great value! This barlow does exactly what it is supposed to do and it does it in a high quality package at a very reasonable cost. The feature which allows you to remove the barlow from the extension tube and attach it directly to the eyepiece has to be one of the most under appreciated options available to the beginning astronomer. This barlow turns one eyepiece into three!

This review was provided courtesy of AgenaAstro.com

5.0 Great Barlow!

Great quality and price

None at this point

While I'm just building a starter set of eyepieces, optical quality is very important to me. I searched through a long list of possible barlow units, and this one is the best of the lot. The clarity and lack of internal reflection brings out the best in my eyepieces, and it provides a new range of magnification powers to my small collection.

This review was provided courtesy of AgenaAstro.com

5.0 Great Barlow!

Great quality and price.

None I can see at this point.

While I'm just building a starter set of eyepieces, optical quality is very important to me. I searched through a long list of possible barlow units, and this one is the best of the lot. The clarity and lack of internal reflection brings out the best in my eyepieces, and it provides a new range of magnification powers to my small collection.

5.0 A fine product at a great price

Perfect coatings,Very low price,Removable lens,Great piece of gear

None that I can tell

Having come of age back in the day when barlow was a dirty word, I was never particularly interested in revisiting this kind of accessory. In the mid 70's barlows promised big and never delivered, with dinky field lenses that looked like the 0.965 units they probably really were, slapped onto a 1.25 barrel and used anyway. I'd never look through a barlow that didn't kill contrast and sharpness, but at least in the process you got image vignetting as a bonus.

Recently after changing jobs and moving to a dark sky site of my wildest dreams, the fire has rekindled and I've had the pleasure of dusting off the old 8" after over 20 years of storage, adding a Zhumell 12" dob to the lineup, and shopping for other reasonably priced modern accessories. I don't know what possessed me to give barlows another go, but I decided that given the excellent performance of the Z12 I'd try a modern barlow as well, being relatively inexpensive. I am glad I did.

The GSO 1.25" was chosen due to the optical excellence I am discovering with the GSO made Zhumell dob. I figured that if they can turn out that kind of performance they must have some idea what they are doing, so I decided to risk with the GSO barlow and see if things have changed. Yes, they have, and for the better.

The GSO 1.25 barlow is a well designed basic piece of gear. It has a large lens element instead of the tiny ones I remember, flawless coatings, a nicely machined barlow tube, and best of all, a removable cell for the lens itself which is standard threaded for any 1.25" eyepiece. This means you can simply unscrew it and put the lens directly on any eyepiece of this size, giving you an additional range of magnification.

From what I can tell the 2x rating of the entire assembly is darn close to the 2x promised, and you can dial this back to about 1.6x by using the lens itself on the eyepiece. If you are using a refractor you can also go up from the 2x by placing it on the nose of the star diagonal, which appears to yield about 3x.

I cannot tell much, if any, difference in image brightness when using this barlow other than the intrinsic amount caused by the higher magnifications. There is zero color fringing and no image vignetting either. This barlow not only cured me of my barlow prejudices, I actually find myself using it on purpose to go to higher mags while preserving most of the eye relief of the original longer FL eyepiece.

I highly recommend this unit if you are in the market for a barlow. Now that I know I like it, I'm just biding my time until I can pick up one of the 2" ED barlows which also has a removable lens.

From barlow hater to a guy who wants two of them is a testament to how well the GSO barlow in the 1.25" format works...it works great.

This review was provided courtesy of AgenaAstro.com

5.0 Works for me!

Comfortable Eyepiece,Quality Lenses,Accurate,Strong Construction

I am very happy with the versatility of this barlow. The direct-screw-on option that basically can make every eyepiece you have get three different magnifications can't be beat, it's a great idea. I use it regularly (I in fact keep it in place when not using the scope because I rarely don't want to use it in one way or the other). I am a newbie to stargazing and this came highly recommended to me in an astronomy forum. I'm certainly glad I followed the advice and now recommend this barlow myself.

This review was provided courtesy of AgenaAstro.com

5.0 GSO 1.25 inch 2X achromatic barlow

Excellent buy,High quality

None found

I already had a fine Meade 2X "Telenegative" (barlow) in my case, so why get another 2x barlow? Well, because for its price you can get one that you can unscrew and fasten directly to your eyepieces and get somewhere like 1.6X to 1.8X. Thus, you get to have a lot more focal lengths. I really have found nothing wrong with this barlow. On eyepieces ranging from 7.5 mm plossls to 25mm and on wide fields to 70deg. Just as clear and sharp as my Meade.

This review was provided courtesy of AgenaAstro.com

5.0 A fine product at a great price

Removable lens, very low price, perfect coatings

None that I can tell. This is a great piece of gear.

Having come of age back in the day when barlow was a dirty word, I was never particularly interested in revisiting this kind of accessory. In the mid 70's barlows promised big and never delivered, with dinky field lenses that looked like the 0.965 units they probably really were, slapped onto a 1.25 barrel and used anyway. I'd never look through a barlow that didn't kill contrast and sharpness, but at least in the process you got image vignetting as a bonus.

Recently after changing jobs and moving to a dark sky site of my wildest dreams, the fire has rekindled and I've had the pleasure of dusting off the old 8" after over 20 years of storage, adding a Zhumell 12" dob to the lineup, and shopping for other reasonably priced modern accessories. I don't know what possessed me to give barlows another go, but I decided that given the excellent performance of the Z12 I'd try a modern barlow as well, being relatively inexpensive. I am glad I did.

The GSO 1.25" was chosen due to the optical excellence I am discovering with the GSO made Zhumell dob. I figured that if they can turn out that kind of performance they must have some idea what they are doing, so I decided to risk with the GSO barlow and see if things have changed. Yes, they have, and for the better.

The GSO 1.25 barlow is a well designed basic piece of gear. It has a large lens element instead of the tiny ones I remember, flawless coatings, a nicely machined barlow tube, and best of all, a removable cell for the lens itself which is standard threaded for any 1.25" eyepiece. This means you can simply unscrew it and put the lens directly on any eyepiece of this size, giving you an additional range of magnification.

From what I can tell the 2x rating of the entire assembly is darn close to the 2x promised, and you can dial this back to about 1.6x by using the lens itself on the eyepiece. If you are using a refractor you can also go up from the 2x by placing it on the nose of the star diagonal, which appears to yield about 3x.

I cannot tell much, if any, difference in image brightness when using this barlow other than the intrinsic amount caused by the higher magnifications. There is zero color fringing and no image vignetting either. This barlow not only cured me of my barlow prejudices, I actually find myself using it on purpose to go to higher mags while preserving most of the eye relief of the original longer FL eyepiece.

At 28 bucks currently I highly recommend this unit if you are in the market for a barlow. Now that I know I like it, I'm just biding my time until I can pick up one of the 2" ED barlows which also has a removable lens.

From barlow hater to a guy who wants two of them is a testament to how well the GSO barlow in the 1.25" format works...it works great.

5.0 The GSO 1.25 inch 2X achromatic barlow.

Excellent buy, high quality

none found for this item.

I already had a fine Meade 2X "Telenagative" (barlow) in my case, so why get another 2x barlow? Well, because for only $25 you can get one that you can unscrew and fasten directly to your eyepieces and get somewhere like 1.6X to 1.8X. thus, you get to have a lot more focal lengths. I really have found nothing wrong with this barlow. On eyepieces ranging from 7.5 mm plossls to 25mm and on wide fields to 70deg. Just as clear and sharp as my Meade. Did I mention for 25 dollars which included shipping!