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Review Summary
2024-08-22T08:28:18
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
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
Can?t go wrong with a Televue
Gil B.
2022-01-09T03:30:35
Wonderful resolution - far better than an ordinary barlow.
James S.
2020-12-06T12:46:19
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
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
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
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
It's great! Fits well, attached 20mm and 32mm eyepieces. Worked really well. Recommend it!
B H.
2013-01-21T19:00:00
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
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
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
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
I use this mainly for astrophotography. It works great with the Nagler 17mm eye piece also.
Mike
2007-02-04T19:00:00
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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1.20 lbs / 545g
1.485lb
6.2 x 3.25 x 3"
410000032312
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.
Tele Vue Barlows: "An Optically Perfect Window "
Properly designed Barlows do wonderful things. First, they amplify power while retaining the eyepiece's eye-relief. Second, they slow the telescope's f/#, which improves eyepiece sharpness. Third, the designer can introduce compensations for eyepiece aberrations.
The 4x Powermate Barlow is a 4-element parfocal, compact amplifying lens system. POWERMATE consists of a negative achromatic doublet plus a positive "pupil-correcting" doublet. While it looks and functions like a Barlow, your eyepiece will operate with pupil locations where the designer intended, avoiding mismatch problems. POEWRMATE optimally mates its power to your eyepieces. No additional "interface lens" is needed, since POWERMATES have it built-in.
In addition to full multi-coating, POWERMATE includes other Tele Vue special touches such as a safety undercut on the chrome barrell, and captive lock screws that can't fall out. Tele Vue's 100% QC program at f/4 insures that POWERMATE will add dramatic power (and NOTHING ELSE) to your favorite eyepieces. If, for example, you own a 22mm Panoptic, you'll have the power of a 5.5mm with the 4x POWERMATE!
The 2" 4x POWERMATE is threaded for 48mm filters.
Dobsonian/Newtonian owners using Tele Vue's Paracorr coma corrector should place the 2.5x or 5x POWERMATE (or Tele Vue 2x or 3x 1-1/4" Barlows) into the Paracorr's 1-1/4" adapter (i.e., between the Paracorr and the eyepiece). For 4x POWERMATE (or Tele Vue 2x Big Barlow), first insert the 4x POWERMATE into the focuser, then the Paracorr into the 4x POWERMATE.