Alstar 1.25in telescope zoom eyepiece 7-21mm

A ALSTAR ★ 3.4/5 · ItemOracle Score Mid-Range

$54 USD
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Alstar 1.25 inch Telescope Zoom Eyepiece - 7 to 21mm Zoom Lens Telescope Eyepiece Multi-Coated Optics Variable Magnification Compatible with Telescopes Filter Threads for Viewing Planets Nebulae

A 1.25 inch zoom eyepiece with 7-21mm focal range and multi-coated optics for planetary, lunar, and deep-sky viewing. Includes extended eye relief for eyeglass wearers and a foldable eyecup for comfortable viewing

Highlights

  • seamless 7-21mm zoom
  • extended eye relief for eyeglass wearers
  • multi-coated 7-element optics

Pros

  • variable focal length 7-21mm
  • extended eye relief 16-33 mm
  • multi-coated optics for sharp views
  • wide apparent field of view 30-43 degrees

Cons

  • no explicit compatibility details beyond general telescope use
  • no user reviews beyond rating provided
  • no included accessories listed

Best For

  • planetary detail viewing
  • lunar observations
  • deep-sky nebulae viewing
  • eyeglass-friendly observing
  • astronomy sessions with adjustable magnification
  • quick target switching during observing runs

Features

  • Zoom range from 7mm to 21mm for flexible focal length control
  • Extended eye relief 16–33 mm with foldable soft-rubber eyecup
  • Wide 30–43 degree apparent field of view for planetary to deep-sky viewing
  • 7-element 4-group optical system with multi-layer coatings for sharp views
  • 1.25-inch barrel threads for filter compatibility and non-vignetting use

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