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TELEVUE POWERMATE, 2", 4X w/1.25" Adapter

TELEVUE POWERMATE, 2", 4X w/1.25" Adapter
See Extended Information for Full Description

List Price: $455.00
Our Price: $350.00
Savings: $105.00
Glasses Compatible? n/a
Eye Relief: n/a
Diameter: 2.0"
Apparent Field n/a
Product Weight: 545G

Quantity in Stock:2
Availability:: Usually Ships in 24 Hours
Product Code: 4200010

Description Technical Specs Extended Information
This 4-element design is as close to invisible in the optical path as any magnifying amplifier.  Eye relief, vignetting, sharpness, clarity, and even focal position are unaffected. Comes with 1.25" adapter.
  • Unique Benefits and Applications for Powermates™
  • 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™ — see below).
  • 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 increase).
  • 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.

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 2 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 powermate 4x adds big power August 26, 2022
Reviewer: max Cuy from Germantown, TN United States  
saturn looks amazing with 2000mm RC10' and this powermate and a APM 20 mm 100degrees objective 2inch... trying to attach it to DSLR with threads next...

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  0 of 0 people found the following review helpful:
5 of 5 As good as it gets December 24, 2020
Reviewer: Miguel Torres from West Nyack , NY United States  
Don is a knowledgeable astronomy and imaging consultant who will always guide you to the best solution for you application. The Televue Powermate 4x is beautifully constructed and the optical quality 2nd to none. I use it for imaging planets with my Pentax K1 DSLR. Without it they appear as tiny dots. This is the best you can get...I highly recommend it for imaging.

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