Tele Vue 2-Inch Eyepiece Barrel Extender




If you use different eyepieces with different focal lengths as you view, there is a time when the barrel of one may not have enough length. Now you can simply add this extender to help you achieve proper back focus. 

This Tele Vue Barrel Extender is for Tele Vue 2-Inch Eyepieces only. It does not match to other eyepiece barrel threads.


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Tele Vue 2-Inch Eyepiece Barrel Extender

Tele Vue 2-Inch Eyepiece Barrel Extension

Have you ever wished your 2" eyepiece barrel was just a little longer? For those of us who use eyepieces in different focal length telescopes frequently, we often encounter the problem of needing more focus travel for certain eyepieces. A time-honored remedy has always been to simply pull the eyepiece out of the focuser as far as it will go... But there are times when it isn't far enough.

Relax. Tele Vue has you covered.

With the Tele Vue EBX-2120 Extension, you can now add another 2" onto any Tele Vue threaded 2" eyepiece barrel. Just twist it into place just like you would a filter... and enjoy the fact that the extension is also threaded for a filter! Tele Vue thinks of everything...

Tele Vue Product Number: EBX-2120

All Tele Vue products are available to ship world-wide from OPT, and effective July 1, 2008, are covered by a Five Year Worldwide Limited Product Warranty! Always be sure to save your original packaging materials should you need to return any Tele Vue product for warranty or repair.



Free ShippingYes
Warranty5 Year Warranty
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4.5 Based on 4 Reviews
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Peter B.
United States United States
Shipped quickly

The item I ordered was shipped quickly...right one.

Scott .
Not for any 2" eyepeice barrel

Beware - the thread on this adapter is for tele-vue eyepieces ONLY. The thread is not the same as a standard 2" eyepiece filter. I just bought 2 of these and after about 1 turn, the threads lock up. Seems they are the same OD but slightly different pitches. Will be returning. I'm sure if you have a TV eyepeice it'd be great. But the description could have used more clarification. 3 stars. Product not defective, but description misleading.

Michael B.
United States United States
Barrel Extender

To bring my video camera to focus on my Dob, I use a shortened set of truss poles. Now with the barrel extender, I can also use my 13mm Ethos. I have the best of 2 worlds-a set up for both video and visual viewing without having to switch truss poles.

Douglas M.
United States
Excellent barrel extender for focusing telescopes requiring backfocus

This solved the problem of bringing telescope images to focus with my TeleVue 2 inch eyepieces on a refractor.