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Explore Scientific ED80 Essential Edition Refractor

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Product Description

When the designers at Explore Scientific set their sights on creating a top-quality apochromatic refractor that anyone would be proud to own, they decided on a traditional air-spaced triplet optical design in a rugged, adjustable lens cell. All materials had to be top-notch, so genuine Hoya extra-low dispersion (ED) Dense Fluor Crown (FCD1) glass was chosen, and then experienced craftsmen shaped and polished the elements that would form the foundation of a high-quality, true APO refractor.

 

All Explore Scientific Air-Spaced Triplet APO Refractors are diffraction-limited at .25PV or better. Special EMD™ enhanced multi-layer coatings are deposited on all optical surfaces, and the result is bright, high contrast images with virtually no light scatter. Interferometic data on your newly purchased and registered Explore apochromatic refractor is available upon request. Time restrictions apply; please contact Customer Service for more information.

 

While optics are definitely the most important component of any telescope, other features, like the focuser, the finder, and the optical tube, play a crucial role in the design. Below you will find highlights on all of the ingredients used to create Explore Scientific Triplet APO refractors, including a very liberal warranty that speaks volumes about the confidence we have in our telescopes!

 

Explore Air-Spaced Triplet APO Refractor Highlights…

 

 

  • Available in 80mm, 102mm, 127mm & 152mm apertures
  • Tube assemblies are available in aluminum (Essential) or carbon fiber
  • Air-Spaced Apochromatic Triplets…true APO optics
  • Diffraction limited at .25PV or better
  • Genuine ED glass from Hoya Japan
  • Enhanced Multi-Layer Coatings (EMD) are deposited on optical elements to boost contrast and eliminate light scatter.
  • Contrast is further enhanced with the installation of matte black knife-edge baffles in the optical tube assembly.
  • While refractors seldom require additional collimation after initial factory adjustment, the lens cell design allows for consumer collimation. Sending off to the factory is an option, but is not required.
  • 80mm - 127mm models come with a heavy-duty 2" Crayford-style dual-speed 10:1 focuser
  • The 152mm model comes with a special edition 3" rack & pinion dual-speed 10:1 focuser, made for Explore Scientific by Starlight Instruments. A 2" compression ring adapter is included.
  • Included 2" diagonal has a precision-polished mirror with enhanced 99% dielectric coatings. A 1.25" compression ring adapter is part of this package.
  • An 8x50 right-angle finderscope with illuminated reticle eyepiece is standard on the Carbon Fiber versions of the ED Series. It provides a wide 6° field of view that is right-side up and left-to-right correct. Great for daytime or nighttime.
  • To attach your Explore Scientific Air-Spaced Triplet telescope to a variety of mounts, we have included the Universal Adjustable Mounting Plate. The "Vixen-style" plate fits mounts made by Explore, Meade, Celestron, Vixen & others.
  • All Explore Scientific products come with a STAR Extended-Life-of-the-Product Warranty. Upon registration, this product will be under warranty for as long as it is manufactured, plus five years.

 

  • Focal Length: 480mm
  • Resolving Power: 1.45 arc seconds
  • Coatings: EMD™ 
  • Limiting Stellar Magnitude: 12
  • Focuser: 2-Speed Crayford-Style

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