Alstar 1.25" 15mm 58-Degree Planetary Eyepiece for Telescope

The sky is an endless canvas, waiting to be explored and admired. For those with a passion for stargazing, the Alstar 1.25″ 15mm 58-Degree Planetary Eyepiece for Telescope is a remarkable companion that will elevate your celestial experiences to new heights.

Crafted with precision and ingenuity, this eyepiece boasts a wide 58-degree field of view, allowing you to marvel at the wonders of the universe with utmost clarity and detail. Whether you’re observing the Moon’s pockmarked surface, the majestic rings of Saturn, or the enigmatic red planet Mars, this eyepiece delivers crisp and vivid imagery that will leave you in awe.

One of the standout features of the Alstar 1.25″ 15mm 58-Degree Planetary Eyepiece is its versatility. While it excels in planetary observation, it also proves to be a formidable tool for exploring deep sky objects. From distant galaxies to ethereal nebulae, this eyepiece reveals the hidden treasures of our cosmos, unlocking a world of wonder that will captivate both seasoned astronomers and curious beginners.

Comfort is key during long hours spent under the stars, and the Alstar 1.25″ 15mm 58-Degree Planetary Eyepiece understands this well. With an eye relief averaging 16mm across the series, this eyepiece ensures that your observing sessions are not only immersive but also comfortable. No more strained eyes or discomfort – just pure enjoyment as you delve into the mysteries of the universe.

Designed with practicality in mind, this eyepiece is threaded for standard 1.25-inch astronomy filters, allowing you to further enhance your observations by adding filters for specific purposes. Whether you seek to bring out the intricate details of a planet’s atmosphere or reduce light pollution to uncover faint celestial objects, the Alstar 1.25″ 15mm 58-Degree Planetary Eyepiece provides the flexibility to tailor your observations to your liking.

The Alstar 1.25″ 15mm 58-Degree Planetary Eyepiece is a testament to the wonders of modern optics. With its fully multi-coated lens elements, it achieves exceptional transmittance and contrast ratio, while virtually eliminating lateral chromatic aberration and light scatter. The result is breathtaking imagery that showcases the true beauty of the cosmos in all its glory.

Not only does this eyepiece excel in performance, but it also offers an exceptional value for your money. Priced at a modest $29.99, it provides an opportunity to delve into the realms of astronomy without breaking the bank. Every detail, every subtle nuance of the universe becomes accessible with this cost-effective eyepiece, allowing you to witness celestial phenomena like never before.

To wrap it up, the Alstar 1.25″ 15mm 58-Degree Planetary Eyepiece for Telescope is a remarkable piece of equipment that will enrich your astronomical pursuits. Its wide field of view, comfortable eye relief, and exceptional optical performance make it an indispensable tool for both novice stargazers and seasoned observers alike. Embark on a journey through the cosmos and unlock the secrets of the universe with this extraordinary eyepiece.

  • Brand: Alstar
  • Objective Lens Diameter: 25 Millimeters
  • Finderscope: Reflex
  • Item Weight: 0.3 Ounces
  • Lens Coating Description: Fully Multi-Coated
  • Focal Length Description: 15 millimeters
  • Wide 58-degree Field of View (FOV): in 2.5mm to 25mm focal lengths
  • Equipped with: an eyepiece barrel which could be rotated for adjustment and a convertible rubber ring for eyes
  • Designed primarily for: planetary observation (Moon, Jupiter, Mars and Saturn and more)
  • Also great for: deep sky objects
  • Comfortable eye relief: averaging 16mm across the series
  • Threaded for: standard 1.25-inch astronomy filters
  • 1.25″ fully multicoated eyepieces: give maximum detail and definition across the entire 58-degree field of view
  • High transmittance and contrast ratio: with least lateral chromatic aberration and scattering phenomenon
  • Each eyepiece has: 5 lens elements in 3 groups
  • Experienced observers will appreciate: generous eye relief at significant magnifications
  • Exceptional at nearly eliminating: lateral color aberration and light scatter
  • Retains: excellent sharpness, contrast, and definition
  • Obtain higher magnification: with short focal length
  • Brings better observation experience: in a comfortable situation with high-contrast imaging
  • A cost-effective eyepiece: obtain more details that you have never seen before


  • High transmittance and contrast ratio
  • Wide 58-degree Field of View (FOV)
  • Fully multi-coated lens coating
  • Comfortable eye relief averaging 16mm
  • Threaded for standard 1.25-inch astronomy filters
  • Retains excellent sharpness, contrast, and definition
  • Brings better observation experience in a comfortable situation with high-contrast imaging
  • Cost-effective eyepiece


  • Objective lens diameter is relatively small at 25mm
  • Item weight is very light at only 0.3 ounces
  • Designed primarily for planetary observation, may not be ideal for other celestial objects
  • May not provide the highest magnification due to its 15mm focal length