Tele Vue 2Inch Powermate 2x Premium Barlow Lens
The Tele Vue Powermate™ series is designed to go beyond the limits of traditional Barlow lenses, delivering exceptional magnification, sharpness, and freedom from aberrations. While standard Barlows can introduce vignetting, pupil shift, and edge distortions-especially with long focal length eyepieces - Powermates use an innovative 4-element optical design that eliminates these issues.
Unlike conventional Barlows, which move the exit pupil and can reduce image quality, the Powermate system combines a negative doublet with a positive pupil-correcting doublet. This telecentric design keeps the exit pupil exactly where the eyepiece designer intended, preserving full-field sharpness, long eye relief, and comfortable viewing.
Why Choose Powermates Over Barlows?
➤ No Vignetting or Aberrations - Delivers full-field clarity, even with long focal length eyepieces.
➤ Greater Magnification Potential - Available in 2x, 2.5x, 4x, and 5x models for flexible imaging and visual use.
➤ Telecentric Optical Path - Ideal for Hydrogen-alpha solar filters and advanced astrophotography.
➤ Compact & Precision Built - CNC-machined with brass compression rings, captive screws, and full multi-coatings.
➤ Versatile Applications - Excellent for planetary and lunar imaging, deep-sky observation, CCD/DSLR astrophotography, and solar work.
🔭 Unique Features
➤ 4-element design with proprietary multi-coatings and high-index glass
➤ Brass compression rings protect eyepieces from scratches
➤ Filter threading (1.25" or 2") for additional flexibility
➤ 100% quality-controlled at f/4 to guarantee true optical performance
➤ Nearly parfocal with most diagonals and eyepieces for easy swapping
➤ Compatible with both visual astronomy and prime focus astrophotography
⚡ Performance Example
With a 24mm Panoptic eyepiece, a 2.0x Powermate provides the power of a 12mm eyepiece, the 2.5x acts as a 9.6mm, the 4x as a 6mm, and the 5x as a 4.8mm all while preserving the original eye relief and comfort.