Barlow Lens 2X, Bysameyee 1.25 Inch Fully Multi-Coated Metal Barlow Lens with M42 Thread Camera Connect Interface for Telescope Eyepiece
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About this item
- Doubles the Magnification: This 2X Barlow lens doubles the magnification and capacity of any 1.25 inch eyepiece at the cost of a single eyepiece.
- Interface with M42x0.75 Thread: With T/T2 (M42x0.75mm) male thread for T/T2 connectors, work as a t adapter. Connect DSLR or SLR camera to telescope easily via a separate sale t ring adapter. (Adapter not included)
- Multilayer HD Broadband Green Film Optical Glass Lens: Offer a high quality observation without introducing additional chromatic aberration. Chromatic corrected; provide high transmittance; ensure clear; sharp views.
- Quality Made: Aluminum stock and black anodized body, precision machined; sturdy for a long term use.
- Free Dust Cap: Keeps lens clear easily with 2 pairs of dust cover. With safety undercut and brass compression ring, ensure the eyepiece barrels will not be marred by the captive set screw.
Reviews
★★★★★
Verified Purchase
Highly recommended for the StarBlast (a small 4.5-inch telescope)
I live in a light polluted city and took the small and convenient 4.5-inch StarBlast Dobsonian telescope to an open park field to show my young children Jupiter and Saturn. I was very disappointed the first night where I just used the two eyepiece that came with the StarBlast (17mm and 6mm). As an amateur astronomer I previously used 8-inch Dobsonian and could easily see Saturn's ring and Jupiter's stripes. But even with the 6mm on the StarBlast, Saturn's ring was so tiny that my 4 year old couldn't tell it's Saturn and Jupiter was so so tiny I couldn't see the stripes. (Though the Jovian moons were clearly visible.) I thought perhaps I should get a bigger scope. But I decided to get some accessories for the StarBlast to try again.
I immediately purchased this Barlow Lens 2X (Bysameyee 1.25 Inch, $26) and an Orion E-Series 7-21mm Zoom Eyepiece ($63). Using either one immediately brought out the true potential of the StarBlast: Saturn's ring was clearly visible for my 4 year old and we can faintly make out the stripes on Jupiter. Given there was a quarter moon close between the two planets and we were in a light polluted city, I was VERY satisfied with the results. The kids were excited because they could easily identify the planets. Of course, using both together was the best.
If you have to buy just one accessory (either the Barlow or the Orion Zoom eyepiece mentioned above) for the StarBlast, go with the 2x Barlow Lens. Using the Barlow with StarBlast's 6mm eyepiece gave the largest view (since the Zoom eyepiece can zoom to 7mm, not 6mm). However the problem with the 6mm is that since it has such a small field of view, it was sometimes hard to find the object as these stellar objects constantly move and also kids sometimes bump into the scope (also the red dot finder isn't as user friendly as a Telrad, but that's not too much of a problem) so I had to rely on the 17mm to zero in on the object and switch back to the 6mm. But since I have small kids, it was a hassle to switch back and forth. So that's where the Orion 7-21mm Zoom comes in. Wow! So convenient to find things when they move out of view, I don't even need to refocus during the zoom. It was also extra fun when the entire quarter moon fits in the 21mm and the kids can ZOOM into the 7mm themselves to look at some craters in detail. They had a blast! If you just use the Zoom Eyepiece without the Barlow on the Starblast, you don't get to see objects extra big, but it's fine, you can still clearly make out Saturn's ring and barely Jupiter's stripes.
In conclusion, I highly recommend getting both the 2x Barlow and Orion Zoom to bring out all that the small but mighty StarBlast scope has to offer! I don't need a big scope in a light polluted city to inspire the kids after all! StarBlast with the 2x Barlow and Orion Zoom give me all the convenience, kid friendliness, and astronomy potential we need.
P.S. After I try to observe some brighter galaxies (Andromeda) and other Messier objects I will update my review.
★★★★★
Verified Purchase
Works perfect with my Meade Coronado PST scope.
I needed to magnify the faint image which is produced by the Coronado PST. The telescope has a short focal length so sometimes Barlow's don't work well but this worked fantastic. My ZWO astrophotography camera has a large CCD so this really helped take advantage of all the CCD surface area. The Barlow looks well-made and should last for many years Provided that you take care of it just like any other eyepiece or lens.
★★★★★
Verified Purchase
See things you were seeing. But bigger!
I wanted to see Jupiter and Saturn bigger and it worked! Was able to see amazing definition that I wasn't able to before. I can't wait to try it out on deep space objects. This thing is quality and well worth the money!
★★★★★
Verified Purchase
★★★★★
Verified Purchase
Works great with my Levenhuk Skyline Base 100S Telescope
Was looking for a little more magnification from the lens set that was included with this telescope, without spending a whole lot of money. This particular Barlow 2x lens fit the bill perfectly. Very happy with this purchase.
★★★★★
Verified Purchase
Really nice piece of equipment!
I purchased this, so I could have a simple means to connect my Nikon D3400 camera up to my Celestron Nexstar SLT 130 (via camera adapter) for lunar imaging and video. Works very well, and allows enough travel for the telescope to focus by repositioning the focal plane closer to the camera sensor.
★★★★★
Verified Purchase
Great quality for the price.
Does exactly what I wanted it to do. I love that its a Barlow lens and a T-adapter. I hooked it up with my DSLR camera to capture the moon through my telescope. It allowed me to achieve focus where ordinary t-rings failed. It is also great for visual astronomy.
★★★★★
Verified Purchase
Finally I could take a pictures of the moon
My Nikon D80 needed this for my ORION telescope. I was able to focus on the moon finally. I can't say about the picture quality or reaching the stars. I had no time to test it.
★★★★★
Verified Purchase
Good value for the price.
This was given as a gift. The recipient was very pleased. He had never heard of a Barlow eyepiece before. I would reccomend this eyepiece.
★★★★★
Verified Purchase
2x Mag, enables SLR, 100% as advertized
This Barlow works great (was looking at the Bode galaxy and Orion Nebula last night. This does have the M42 thread to allow SLR connectivity but keep in mind you still need the appropriate adapter ring for your specific lens type.
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Question & Answer
Question :
Will this adapter hold an existing eye piece or is it only for use with the optics it has in it? iows is it a eye piece projection tube too?
Answer :
Even with its external threaded housing, it does allow you to place an eyepiece in it. Its a very nice Barlow. You cant visual-eye look through it without an eyepiece but it will work with or without an eyepiece in conjunction with a DSLR or astro-imaging camera.
Question :
When attaching this to an eyepiece does it help with viewing things like planets or is the clarity the same?
Answer :
Any time you position an optic into the visual light path you will slightly degrade the image quality but this Barlow does a good job minimizing that degradation and it will allow you to see whatever detail is available at twice the magnification which can be very pleasing to the eye. If say you are looking at Jupiter through your telescope and its fuzzy, this Barlow will simply make that fuzzy image twice as big but not necessarily "fuzzier." It wont make it "clearer."
Question :
Will this fit a svbony sv503 telescope 80ed f7 telescope?
Answer :
It should work provided that its used with the telescopes 2" to 1.25" adapter. I cant tell you how to achieve proper back-focus but you'll probably need to use an extension tube or a 90 degree mirror in the focal plane.
Question :
What does this do? I purchased it to look at the moon closer but looks the same.
Answer :
Take an eyepiece put it in your scope and view. Then take the same eyepiece secure it into the barlow then put into the scope if it's not double what you first viewed then it's defective return it. I use my 2x and 3x Barlow's every time I view.
Question :
Are the male M42 threads aluminum or plastic?
Answer :
Aluminum; its a nice little 2x Barlow. Works great with my ZWO camera.
Question :
We just bought a 6mm 1.25 eyepiece for our celestron omni telescope. the hole is so tiny. is this designed to magnify the image for better viewing?
Answer :
Yes. A Barlow lens is designed to magnify the image utilizing an actual eyepiece.
You can couple that 6mm eyepiece with a Barlow if you wish, but it's not going to make it easier to use/view if that's the issue that you're facing.
Hope that answers your question.
Question :
I put the this barlow on my skywatcher 127 to view the moon. i got it in view without the barlow and then when i added it i couldn’t see anything.
Answer :
Perhaps your barlow is defective. You may have to return it. It happens.
Question :
Will this for the celestron powerseeker telescope?
Answer :
If it takes 1.25 lenses. Sure
Question :
Will this work with a celestron inspire 90 az
Answer :
I have not used that telescope but this Barlow will fit its 1.25 eyepiece mirror assembly and should work well. Don't try to use a Barlow any greater that 3x or you will just get disappointing fuzzy images looking through that telescope.
Question :
Will this work with a Celestron 127eq?
Answer :
Yes, it will, 127eq has 1.25" eyepiece
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