Tele Vue 2.5x - 1.25" Powermate

Tele Vue 2.5x - 1.25" Powermate

The Televue 2.5x Powermate is different from a traditional Barlow lens because it has a 4 element lens design (Four Glass Elements) that delivers full field sharpness with virtually no aberration. The Televue 2.5x Powermate will outperform any Barlow lens because the additional lens elements within the Powermate body.

The Televue 2.5x Powermate has a 1.25" barrel and stands less then 3" tall. The Televue Powermate is threaded to accept all types of 1.25" filters and is great for both visual observing and imaging. TeleVue makes Powermate T-Ring Adapters (TLV-PTR-1250) for close coupling to cameras and CCD Imagers.

The Televue 2.5x Powermate is 0.45 lb and comes with a full 5 year warranty from TeleVue.

Below is a quote from Televue's founder Al Nagler:

"While Barlows are powerful tools, the negative element defining them also limits their ability. The simple negative element Barlow increases eyepiece eye-relief. With short focal length eyepieces the effect is negligible. However, on long focal length eyepieces the exit pupil position moves well beyond the designer's intended position, resulting in vignetting with many eyepieces. This is why "Shorty" Barlows in particular, with their strong negative element often vignette and degrade long focus eyepieces. My 4-element form picks up where the Barlow concept can go no further. Powermate is a technically universal solution, using a positive field lens to redirect field rays. The result is an exit pupil that stays where the eyepiece designer intended. With freedom from aberrations, greater magnification potential, and compact size, I hope you'll agree Powermates and raises the standard for image amplification." - Al Nagler