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Tele Vue 2.5x Powermate, 1.25" Image Amplifier

SKU: TVBL25XN MFR: PMT-2513
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Key Features

  • Boost your telescope's magnification power by 2.5x with this Tele Vue Powermate!
  • Enjoy enhanced image quality with premium optical coatings for brighter views.
  • Perfect for high-power planetary viewing and detailed lunar observations with your telescope.
  • Experience comfortable viewing sessions with long eye relief, even with glasses on.
  • The 1.25" barrel size fits most standard telescopes, making it a versatile accessory.
  • Achieve sharper, clearer images, revealing finer details in celestial objects, guaranteed!
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Questions & Answers

mark r : Can this be used with Nikon camera adapter?Douglas W : Sure. I use the 1.25 inch PM 2.5X with my Nikon D300 and Stellarvue Raptor 90mm triplet apo refractor. Buy the Tele Vue T-Ring adapter for 1.25 inch Powermates ($45 @ Adorama) and put it between the 1.25 inch 2.5X Powermate and your Nikon T-Ring. Remove the black 1.25 inch barrel before you screw the 2.5X Powermate silver lens housing into the Nikon T-Ring. It's true the 1.25 inch Powermates transmit less light than the 2.0 inch magnifiers. You can buy the 2.0 inch 2.5X Powermate for $300 (there is a Televue 2.0" Powermate adapter you can buy), or some cheaper 2.0 inch 2 or 2.5x magnifier, if image brightness is an important issue for you. Keep in mind that the Powermates are specifically designed to produce a flat image on your sensor, which makes for a sharper camera image.LARRY B : a 2" 2xs is better the tele vue BIG barlow will work better then the 2.5" as it has a much larger field stop = larger field of vue i use the Astro-Physics Convertible Barlow its 2" with a t ring an 2"adapter to double the power of my 4" AP with no lost of PHOTO QUALITYLARRY B : dont think so it only has a 1.25" holeLEONARD J : As long as you have a 1.25 inch T-ring you should have no problem. It will work regardless of the camera make. LenTERRY H : As long as you have the proper adaptor for your camera. This will allow you to connect your camera to your telescope thru the eyepiece. You will need the t-ring for a Nikon camera. The power mate will connect to the t-ring which will connect to your camera.
Shopper : Why Did You Choose This?MICHAEL A : Curious to see how this is better than the CelX BarlowSureshkumar P : thats my hobbyJOSEPH D : Tele Vue optics are a top shelf product.JAMES S : Good reviews onlineCHRISTINE H : Quality of productMAX G : Good reviews. Better than a Barlow.PHILLIP J : Great opticsRAYMOND H : easy ordering , no fuss just businessGARY W : Excellent reviews for image qualityRICHARD M : Great Televue quality. I have always been impressed with their lenses.AARON K : high quality alternative to a barlow

Reviews about this item

Review Summary

2024-08-22T08:28:18

Rated 5 out of 5

Excellent quality in an image amplifier

Excellent image, transparency and quality. This is not a simple barlow, it is an image amplifier which uses optics design to capture as much light as possible from the telescope and magnify the image. I am attaching a video taken with a Lunt 50 H-alpha solar telescope, which shows the excellent quality of the image. Note the solar flare and prominences captured. The prominences are extremely faint details which get easily wiped out by a low quality barlow.

Hermann P.

2024-04-23T17:46:03

Rated 5 out of 5

Powermate 2x

Grand slam in my book. Wow . For me this was a must have. Tele vue simply blows my mind. This mag does exactly as described and then some .

Patrick V.

2022-01-20T10:39:59

Rated 5 out of 5

As expected

Can?t go wrong with a Televue

Gil B.

2022-01-09T03:30:35

Rated 5 out of 5

Great resolution

Wonderful resolution - far better than an ordinary barlow.

James S.

2020-12-06T12:46:19

Rated 5 out of 5

Tele Vue 2.5x Powermate

Due to cloudy skies, I haven't had a lot of scope time with this Powermate lens but I have viewed Jupiter, Saturn, and sunspots with it and my 19mm Clave lens and I have to say that I'm quite pleased with the sharpness and clarity of the images. The lens definitely has some weight to it which necessitated my having to put some brakes on the scope tube for balance but that was no big deal. Also, it was a very pleasant experience dealing with Adorama for the purchase. Great lens!

GARY W.

2020-11-25T08:04:46

Rated 5 out of 5

Excellent quality!

The Televue 5X Powermate, like the Televue eyepieces I have, is high quality. I purchased it for use with my Nikon dslr for photography through a Series 6000 Meade refractor and I am quite happy with the results. One note: the refractor did not provide enough focusing distance for the camera-Televue combination. Adding an inexpensive Orion eyepiece extension tube solved the problem.

DAVID M.

2017-08-15T10:52:42

Rated 5 out of 5

Simply the best

I bought it for tasking pictures through my TV-85. I wanted the sun or moon to fill a full frame sensor. Works perfectly for that. Also stunning when used visually. Be aware, as a 2" accessory it is deceptively big and heavy. Since most high-powered eyepieces are 1 1/4" size, they tend to be much smaller and lighter than using this beast. But the views through are incredible! As an accessory for full-frame photography, this can't be beat.

CARL S.

2017-07-28T12:23:34

Rated 5 out of 5

If all astro products were made this well...

It allowed me to see the Calcium bandwidth for the first time with both eyes, which means also seeing the objects for the first time, after several years going mono. A work of art.

TED H.

2016-03-30T13:07:36

Rated 5 out of 5

It's great!

It's great! Fits well, attached 20mm and 32mm eyepieces. Worked really well. Recommend it!

B H.

2013-01-21T19:00:00

Rated 5 out of 5

Nice quality, bettter than any barlows

This is a quality 'magnificator' for your 1.25" EP. As advertised, it is better than a normal barlow and provides 2.5X magnification and nothing else. Yes it does make you get some more money out of your pocket than barlows, but it does a better job so I think it's worth it.

Stevie

2011-10-09T21:00:00

Rated 5 out of 5

A must for planet imaging

This product is very solid. The optics are first class and gives me the size I was looking for.

gary m.

2011-03-12T19:00:00

Rated 5 out of 5

Great Optics

As always you cant go wrong with a Tele Vue. This item is well built and has great through put on light. I use this for visual veiwing and astrophotography.

Oregon M.

2010-11-20T19:00:00

Rated 5 out of 5

MUCH BETTER THAN AN ORDINARY BARLOW!

Use this with my 85mm and 105mm refractors and it works great!! To my eyes, it is shows a much clearer visual image than the barlow I was previously using. Another wonderful product from Al & David Nagler and the folks at Tele Vue!!

TC

2010-08-08T21:00:00

Rated 5 out of 5

Super Powermate

I use this mainly for astrophotography. It works great with the Nagler 17mm eye piece also.

Mike

2007-02-04T19:00:00

Rated 4 out of 5

Great way to enhance viewing

Although I have only used the Tele Vue 2.5 Powermate on selected viewing occasions at our LCAS Astronomy Club dark sky sites,I found it to be a wonderful addition to my deep sky viewing capabilities. The clarity and eye relief the powermate offers adds to a great pleasure in the astronomy hobby.

John

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5 Accessories for Tele Vue 2.5x Powermate, 1.25" Image Amplifier

  • All Accessories (5)
  • Rings (1)
  • Lens Adapters (1)
  • T-Mounts (3)

About Tele Vue Powermate

FEATURED REVIEWS

Great Optics

By Oregon M.

As always you cant go wrong with a Tele Vue. This item is well built and has great through put on light. I use this for visual veiwing and astrophotography.

Excellent quality in an image amplifier

By Hermann P.

Excellent image, transparency and quality. This is not a simple barlow, it is an image amplifier which uses optics design to capture as much light as possible from the telescope and magnify the image. I am attaching a video taken with a Lunt 50 H-alpha solar telescope, which shows the excellent quality of the image. Note the solar flare and prominences captured. The prominences are extremely faint details which get easily wiped out by a low quality barlow.

Where precision and performance meet, the Tele Vue 2.5x Powermate 1.25" Image Amplifier stands out. This advanced optical tool amplifies power while maintaining the eyepiece's eye-relief, enhancing your viewing experience. It also slows down your telescope's f/#, resulting in improved eyepiece sharpness.

The 2.5x Powermate Barlow is a compact, 4-element parfocal lens system that introduces compensations for eyepiece aberrations. It features a unique design that combines a negative achromatic doublet with a positive "pupil-correcting" doublet. This design ensures your eyepiece operates with pupil locations as intended by the designer, eliminating mismatch issues.

The Powermate optimally matches its power to your eyepieces, eliminating the need for an additional "interface lens". This is because the Powermate has this feature built-in, offering you a seamless viewing experience.

The Powermate is more than just a Barlow. It includes full multi-coating and other special touches from Tele Vue, such as a safety undercut on the chrome barrel and captive lock screws that can't fall out. Tele Vue's 100% QC program at f/4 ensures that the Powermate will add dramatic power to your favorite eyepieces without adding anything else.

For instance, if you own a 22mm Panoptic, the 2.5x Powermate will provide you with the power of an 8.8mm focal length eyepiece. The Powermates are designed to be parfocal with Tele Vue's 1-1/4" 90-degree diagonal, adding a level of convenience not previously available with any Barlow.

The 2.5x Powermate is compatible with Dobsonian/Newtonian owners using Tele Vue's Paracorr coma corrector. It also accepts the Tele Vue PTR-1250 T-ring Adapter for close coupling cameras and CCD Imagers. For imaging purposes, the user can simply unscrew the eyepiece holder barrel and screw on the T-Ring Adapter instead.

In conclusion, the Tele Vue 2.5x Powermate 1.25" Image Amplifier is a sophisticated tool that enhances your viewing and imaging experience, making it a valuable addition to your telescope setup.

Tele Vue Powermate Features

  • Latest Version, Accepts the T-Ring Adapter
  • Vignetting, edge field aberrations and pupil movement - all introduced when using Barlows with long focal length eyepieces, are minimized.
  • Telecentric operation (field rays leave parallel to optical axis, unlike Barlow lenses which diverge rays). This is ideal for Hydrogen-alpha filter use such as with Daystar models.
  • High performance for image amplification, CCD or film (some of the finest Earth-based planetary imaging is being done with Powermates).
  • Flexible for visual and imaging with all types of telescopes and eyepieces. Essentially Parfocal, and with nearly constant magnification regardless of image distance behind top surface (except 5x model which increases 1x for every 35mm of image distance i
  • Higher magnifications are possible with high optical performance compared to "doubling up" Barlows.
  • All will reach parfocal point in star diagonals, except for the 2", 2x which comes very close.

Key Features

  • Boost your telescope's magnification power by 2.5x with this Tele Vue Powermate!
  • Enjoy enhanced image quality with premium optical coatings for brighter views.
  • Perfect for high-power planetary viewing and detailed lunar observations with your telescope.
  • Experience comfortable viewing sessions with long eye relief, even with glasses on.
  • The 1.25" barrel size fits most standard telescopes, making it a versatile accessory.
  • Achieve sharper, clearer images, revealing finer details in celestial objects, guaranteed!

What's in the box:

  • Tele Vue 2.5x Powermate (1.25")
  • Tele Vue Limited 5 Year Warranty