Explore Scientific ED102 Essential Edition Telescope
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Explore Scientific ED102 Essential Edition Telescope

The Explore Scientific ED102 Essential Edition is a value oriented member of the 102mm apochromatic refractor class.

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 after 6 months of ownership. 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 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 ED102 Air-Spaced Triplet Refractor Highlights:

  • The Explore ED102 Essential Edition telescope comes with a white aluminum tube with black accents.
  • Explore Scientific Air-Spaced Apochromatic Triplets have true APO optic and are diffraction limited at .25PV or better
  • Genuine ED glass from Hoya Japan is used on all ED APO Triplets at Explore, for superb quality and light throughput
  • Enhanced Multi-Layer Coatings (EMD) are deposited on optical elements to boost contrast and eliminate light scatter; and 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 your ED102 Triplet off to the factory is always an option, but is not required.
  • 102mm models come with a heavy-duty 2" dual-speed rotatable focuser, including 2 draw tube extensions.
  • To attach your Explore Scientific Air-Spaced Triplet telescope to a variety of mounts, we have included the "Vixen-style" dovetail. The "Vixen-style" plate fits mounts made by Explore, Meade, Celestron, Vixen and others.

Explore STAR Warranty

All Explore Scientific Products sold within North America are covered by a standard one year limited warranty; however, when the new product is registered within 60 days of purchase, it is covered under the Explore STAR Transferable North America Unlimited Lifetime Product Warranty program. The full details of this extended warranty are available here (PDF, opens in separate window.)

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Our price: $1029.99

RRP: $1249.99 save 18%
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Security Seals
SKUES-ED10207-01
Telescope Type Apochromatic Refractor
Aperture (in.) 4 inches
Aperture (mm) 102 mm
Focal Ratio f/7
Focal Length 714 mm
Limiting Visual Magnitude 12.7
Accepts 2-inch Eyepieces Yes
Focuser Type Dual-speed rack and pinion
Focuser Size 2-inch
Star Diagonal 2-inch dielectric mirror
Finder None
Optical Tube Weight 11 lbs.
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