Alstar 1.25 in Plossl Telescope Eyepiece Set - 6mm 20mm 32mm

In this review of the Alstar 1.25 in Plossl Telescope Eyepiece Set the bottom line is simple: this three-piece eyepiece kit is aimed at hobbyist astronomers who want reliable, affordable eyepieces for lunar, planetary and many deep sky targets. The set includes 6 mm, 20 mm and 32 mm Plossl eyepieces that screw to standard 1.25 in filters and accessories, and its single biggest selling point is the fully multicoated 4-element Plossl optics that deliver clear views across a useful 50-degree apparent field without requiring an expensive upgrade.

Key Features

• Threaded 1.25 in fit: Compatible threading makes these eyepieces easy to use with standard 1.25 in telescope filters and accessories for quick setup.
• Three focal lengths: The 6 mm, 20 mm and 32 mm combination provides low-, medium- and high-power options that cover lunar detail, star clusters and wider deep sky views.
• 4-element Plossl design: The achromatic Plossl optical layout and full multicoating reduce aberrations and improve contrast for sharper planetary and lunar observations.
• Approximately 50-degree AFOV: A moderate apparent field that balances a comfortable view and affordable optics for general observing sessions.
• Fold-down rubber eyeguard: The eyeguard increases comfort during extended viewing and helps block stray light for improved eye position and contrast.
• Durable accessories: Sturdy plastic dust caps and robust construction protect the lenses during storage and transport.

Who It's For

This set is best for amateur astronomers and beginners who want a versatile, budget-friendly eyepiece pack to cover a broad set of targets without buying single premium eyepieces. It is particularly useful for observers who use standard 1.25 in filters and want pieces that thread directly to those accessories.

Observers looking for extremely wide fields, premium long eye-relief designs for eyeglass wearers, or eyepieces with exotic multi-element glass should look elsewhere; this set focuses on reliable Plossl performance and value rather than advanced eye relief or ultra-wide fields.

Pros & Cons

Pros

• Good optical value: the fully multicoated Plossl optics produce clear, contrasty views at a reasonable price.
• Versatile focal length selection: the 6 mm, 20 mm and 32 mm trio covers high, medium and low power needs for many targets.
• Comfort and protection: fold-down rubber eyeguards and dust caps make prolonged use and storage easier.

Cons

• Moderate apparent field: the roughly 50-degree AFOV is fine for many uses but not as immersive as premium wide-field eyepieces.
• Not specialized for eyeglass wearers: eye relief is adequate but not exceptional for those who must keep glasses on.

Specifications

Our Verdict

The Alstar 1.25 in Plossl eyepiece set is a practical, cost-effective kit for hobbyists who want three complementary focal lengths that thread to standard 1.25 in filters and accessories. Its fully multicoated 4-element Plossl optics deliver dependable views of the Moon, planets and many deep sky objects, making it a solid value for those who prioritize utility and compatibility over ultra-wide fields or specialty eyepiece features.

Frequently Asked Questions

Do these eyepieces fit standard telescope filters?
Yes, the eyepieces are threaded for standard 1.25 in astronomy filters and accessories so they can attach directly.

What kinds of targets are best with this set?
The 6 mm is suited to higher magnification views like planetary detail, while the 20 mm and 32 mm are better for lunar scenes, star clusters and many deep sky targets.

Are the lenses protected for storage?
Yes, each eyepiece comes with sturdy plastic dust caps and a fold-down rubber eyeguard for protection and comfort.