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  • AR102_Air-Spaced_Doublet_headerExplore the entire AR Air-Spaced Doublet Refracting Telescopes
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  • ed80cf_diagonalExplore the entire line of ED Air-Spaced Triplet Apochromatic Refractors
Explore Scientific Telescope Optics


Precision Optics


The science of astronomy, or "law of the stars" ("astro" is Greek for "star", and the word "nomos" means "law"), has been around for thousands of years, but it's only been twelve generations since telescopic optics were first aimed towards the sky. The first explorers of the heavens were amateur astronomers, and their discoveries changed everything, from the way we view the universe around us to the way we think about our existence here on Earth.


Designing and manufacturing optics is at the heart of what we do. Explore Scientific designers and optical craftspeople constantly strive to produce optical tools that will deliver the precision and dependability that explorers of the Universe deserve, regardless of their level of expertise.


Producing optics of this caliber requires a solid design, careful fabrication, and multiple tests throughout the manufacturing process, but it also takes a dogged determination to keep perfecting our processes and skills so that our products keep getting better and better. To further insure your faith in Explore Scientific products, we back all of our telescopes with the Explore STAR Transferrable, Extended Life of the Product Warranty, so you can keep exploring!

Explore STAR Extended and Transferrable Life of the Product Warranty


Explore STAR Warranty


We are always striving to improve the quality of Explore Scientific eyepieces and to enhance your experience as a user of our products. This is why we created the Explore STAR Transferrable Extended Life-of-the Product Warranty Program.


For as long as Explore Scientific manufactures a product it is under warranty, no matter how many times it is sold or traded to another individual. And when we stop manufacturing a given model (referred to as the end of the Life of the Product), we will extend the warranty automatically for another five years.


Learn More about Explore STAR

Reviews and Comments from Experts and Users


Reviews & Testimonials


Read reviews and comments from experts and owners to determine if an Explore Scientific telescope is the right tool for you:


  • Jerry Hubbel - ED127 & Telescope Drive Master

  • Chuck Kimball - ED80, Comet Hunter, & ED127

  • Mark Sibol - ED102

  • Mike Wiles - ED127

  • Cloudy Nights Forum - ED127