Tele Vue's barlow lenses are individually tested to perform with f/4.0 telescopes without degradation anywhere in the field. Both optical elements within the barlow are fully multicoated, and it accepts 1.25" filters.
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Tele Vue BLW-2125 Overview
Tele Vue BLW-2125 Reviews
Double your eyepieces
By Jeffrey
Rated 5 out of 5
Date: 2025-02-15
Works great, like it is not there. No dimming or distortions.
A must have
By Chris
Rated 5 out of 5
Date: 2023-03-13
Don't waste your time or money on cheap Barlows. Get the TeleVue 2x and double your eyepiece collection without compromising the quality of your views.
See any errors on this page?
Does this work on a Sky-Watcher 8" f/5.9 ...
Does this work on a Sky-Watcher 8" f/5.9 Traditional Dobsonian Telescope? If yes, would I need anything else (some adapter)? Would there be any better option for my telescope (at comparable price)?
This Barlow would be better because it is a 2 inch mount just like the eyepiece mount of your telescope.;
https://www.bhphotovideo.com/c/product/329480-REG/Tele_Vue_PMT_4201_4x_Powermate_2.html
If you want to use the Tele Vue 2x Barlow Lens (1.25") on your scope , you would need a 1.25 to 2 inch adapter.
https://www.bhphotovideo.com/c/product/457656-REG/Lumicon_LA1055_1_25_Male_to_2.html?sts=pi&pim=Y
Date published: 2021-06-24
Does this work good with a celestron c8 ? Can i ...
Does this work good with a celestron c8 ?
Can i combine this barlow with a 7mm eyepiece ?
Yes it is compatible with the C8 and a 7mm eyepiece.
Date published: 2020-11-04
I am planning to combine this Barlow Lens with ...
I am planning to combine this Barlow Lens with the Tele Vue DeLite Series 3mm Eyepiece, and the Celestron 8" Edge HD. Would this work?
The maximum useful magnification for the Edge 8 Hd is 480x. If you get a higher magnification eyepiece you will not be able to focus the telescope. It will be too blurry and difficult to focus with anything higher than a 7mm eyepiece. So I would not recommend this Barlow but instead just a 7mm eyepiece such as this: https://bhpho.to/37VnNbj
Date published: 2022-11-18
question
Do i need televues t-ring to connect my Canon t4i or can i use it with any generic tring?
You can use any generic T-Ring as long as it's an M42.
Date published: 2018-08-27