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NEEWER 4 Pcs T2 Extension Tube Kit, 5mm 10mm 15mm 20mm Extension Tube with Double Sided M42x0.75mm Thread, Telescope Accessory for Astrophotography

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$21.92

$ 9 .99 $9.99

In Stock
  • 【A "must have" accessory】Designed to be placed in front of the focal plane of your telescope to add length to the original tube, offering extra focuser back travel and the correct image scale for astrophotography
  • 【Combine extension tubes】The set includes extension tubes of 4 lengths: 5mm, 10mm, 15mm, and 20mm. Achieve different spacing as required by combining one, two, three or four tubes together - connect male threads with female threads
  • 【Standard T2 Thread】With T2 thread (M42x0.75mm) on both interior and exterior sides, the tubes can be easily mounted on a T ring adapter to connect to your camera and make focusing in astrophotography much easier. Note: they cannot be directly connected to a 1.25" eyepiece, but can be connected to a camera through an adapter ring
  • 【Anodized Metal Build】 Made of anodized aluminum alloy to stop any reflection, the sturdy extension tubes are built to last and withstand daily wear and tear.
  • 【Lightweight】Weighs only 1.94oz/55g. The tubes won’t bring extra weight to your telescope when filming. The lightweight design makes them easy to carry as well



Product Description

1
2
3

41

Standard T2 thread on both sides

Featuring standard T2 male thread, the extension tube can be connected to another tube or other 1.25" telescope accessory.

42

Threaded on the Inside

The tubes are threaded on the inside to eliminate reflections. They help improve image brightness, reduce dark edges, and make details clearer on picture.

43

Anodized Aluminum Alloy Build

The tubes are made of anodized aluminum alloy, sturdy and durable enough to withstand daily wear.

5

Robert McDaid
Reviewed in Canada on January 31, 2025
Well made, threads work flawlessly. Highly recommended
Kiaf
Reviewed in Italy on January 27, 2025
Ottima transazione e spedizione
RayRay
Reviewed in the United States on November 17, 2024
The clear size markings on the rings makes it easy to find the size you need.
Charles R. MacCluer
Reviewed in the United States on November 14, 2024
Decent quality at a more than reasonable price. Recommended.
Customer
Reviewed in the United States on November 24, 2023
I've ordered quite a few spacers on Amazon and these are the best quality to date. Virtually none of the others I've purchased have a matte finish on the inside and many permanently seize together because the thread quality is so poor. I'm very impressed with these and will order M48 sizes if I can find them.
ノートパソコン
Reviewed in Japan on November 19, 2023
アイピース側に20mmアダプターを取り付けました。一眼レフ側には、望遠鏡延長ポータブル1.25インチ望遠鏡延長チューブM42スレッドT?マウントアダプターT2リングニコンFマウントカメラを取り付けています。
amavoTo
Reviewed in Germany on October 20, 2023
Ich würde die wieder kaufen
Philosophically Your"S"
Reviewed in the United States on January 31, 2023
If you are using DSLRs for astrophotography like me, then you often need to wonder what is the right focal length of the scope at a given point and adjust the imaging device with precision before taking the shots. I used this T2 extension kit, and my observations are -* it has handy sizes (5/10/15/20) to build various lengths needed to adjust the scope. I particularly like the 5mm one as I often need a little more, and it was very useful.* the T2 extension units are well coated and I didn't see any bad reflection, even for bright objects like the moon.* each unit is precisely milled, and the threads stayed intact after repeated use.Overall, I'd recommend using the T2 extension kit for the quality and the price.
Shawn Thornburg
Reviewed in the United States on January 27, 2023
These adapter rings are of course meant to extend the distance between a camera and a telescope as part of an adapter system, and they won't function as a method to attach a camera to a telescope on their own. If you don't already have an adapter ring specific to your camera and an eyepiece adapter for the telescope, these won't do you much good, but if you have those already, these are great. They will provide minute changes in focal length so you can get just the right distance between your camera and the telescope. I haven't figured that part out yet because it's just been too cold to stand outside and fidget, but suffice it to say that these rings do exactly what they say. I would recommend getting these and another adapter set that has different focal lengths so you can really play around and find the exact distance you need for your telescope. This set will provide excellent results on its own, however. I can easily recommend it.
Goddess of Chaos
Reviewed in the United States on January 2, 2023
This is my first foray with an extension tube, or trying my camera with a telescope, so I was delighted by the nice quality of these pieces, they are well made with good threads for connecting them, and exactly as described in the blurb.I’m looking forward to using these.
Oana M
Reviewed in the United Kingdom on January 13, 2023
This is the best lens accessory for the price. These tubes work perfectly with my telescope and can create long exposure shots and multiple shots with the same lens. They are durable and come with a great carrying case. This is a must-have for your telescope.The quality of the NEEWER Extension Tube Kit is outstanding. The lenses are incredibly sharp and the extension tubes are so easy to use. I love how the kit comes with a variety of different lenses, meaning that I can use my Extension Tube Kit for a variety of different shots. If you are interested in learning more about astrophotography, this is the perfect kit to get you started.This is the perfect tool for professionals who are in the market for a good telescope accessory. I love this telescope accessory because it is the perfect size and really easy to carry around. I find that I am able to use this accessory to get an amazing shot of the night sky and the quality is always excellent.
Beth Kao
Reviewed in the United States on November 7, 2022
Not a lot to say about simple machined aluminum tubes, but these are well made. Each of the four tubes was within 0.2 mm of the stated length. The tubes are well machined, all of the threads are clean and work cleanly. I tested it with another T2 adapter and all the pieces screwed together flawlessly. The interior of the tubes is also machined with ribbing and coated with matte black to prevent light bounces, exactly what you would want. The kit even comes with a lens cloth, which is a nice bonus since there are no lenses. Overall good stuff.
Espoir
Reviewed in the United States on November 24, 2022
This set of T2 or M42 extensions seems to be of a higher quality when compared to another similarly priced set that I recently reviewed. I can recommend this set as a good value.Millimeter lengths are marked on the individual rings. The mating of the male and female threads is precise without excessive slop or tightness. And unlike some other extensions that I own the internal reflections on this Neewer set are minimized by having both threaded grooves and what appears to be a post-anodizing coating to further blacken the interior. Others that have only the somewhat shiny matte finish of the black anodizing can be considerably more reflective.Finally, the wall thickness of the individual sections is about 3.4mm, which is a little thicker than others in my collection. I consider this a good thing when thinking about the loads that are sometimes hanging on these tubes.I have several other Neewer products and I've been pretty happy with the value, and this set of T2 extension tubes is no exception.
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