Explore Scientific 102mm f/7 Essential Series Triplet Refractor w/ EXOS-2 GoTo EQ Mount

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Explore Scientific 102mm f/7 Essential Series Triplet Refractor w/ EXOS-2 GoTo EQ Mount
$1,499.99
Item # ES-ED102-E2GT
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  • The Explore Scientific 102mm f/7 Essential Series APO Refractor has an air-spaced triplet optical design that all but completely eradicates chromatic aberrations.
  • Enhanced Multi-Layer Coatings (EMD) are deposited on optical elements to boost contrast and eliminate light scatter.
  • The Explore Scientific 102mm f/7 Essential Series APO Refractor comes in classic white with black accents.
  • Package includes heavy-duty dual-speed 2" rack & pinion focuser, 2" diagonal with 99% reflectivity, cradle rings with handle, Vixen-style dovetail, adjustable steel tripod, Bresser Sky Tracker hand controller, and 9.9 lb. counterweight.
  • The Explore Scientific Bresser EXOS-2 GoTo Equatorial Mount has a load capacity of up to 28 lbs. and features a database of over 30,000 potential astronomical targets.
  • Both axes contain precise ball bearings to guarantee minimal backlash at all nine tracking speeds.
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Explore Scientific 102mm f/7 Essential Series Triplet Refractor Telescope


Get acquainted with the tremendous number of night sky viewing opportunities with this Explore Scientific 102mm f/7 Essential Series Air-Spaced Apochromatic Triplet Refractor, including detailed views of our Moon's craters, Jupiter's cloud belts, and the blue-white stars of the Orion Nebula.

Finding a happy medium between convenient portability and aperture, the Explore Scientific ED102 is a versatile, top-of-the-line telescope with true diffraction-limited optics that is capable of functioning well when asked to view the Moon, planets, or deep sky objects due to the size of its objective lens.

With chromatic aberrations all but completely eradicated due to its air-spaced triplet optical design, the ED102 combines genuine HOYA extra-low dispersion (ED) glass with Explore Scientific's exclusive EMD enhanced multi-layer coatings on all optical surfaces to provide vivid images with high contrast.

Bresser EXOS-2 GoTo Equatorial Mount


The Bresser EXOS-2 GoTo EQ mount has a load capacity of up to 28 lbs. and has a database holding over 30,000 potential astronomical targets. Both axes on the EXOS-2 contain precise ball bearings to guarantee minimal backlash at all nine tracking speeds. Includes a sturdy steel tripod with adjustable legs, polar finder, Bresser Star Tracker hand controller, and 9.9 lb. counterweight.

Explore Scientific Product Number: ED102-E2GT

Additional Information

Additional Information

SKU ES-ED102-E2GT
UPC Code 812257017065
Manufacturer Explore Scientific
Telescope Series Explore Triplet ED
Optical Design Refractor - Apochromatic
Mount Type Equatorial - Motorized w/GoTo Option
Warranty 1 Year Warranty
Telescope Aperture 4" (102mm)
Telescope Focal Length 714mm
Telescope Focal Ratio f/7
Limiting Stellar Magnitude 12.5
Optical Coatings Explore EMD
Tube Color or Finish Gloss White
Optical Tube Outer Diameter 119mm
Length of Optical Tube 30.5" (774mm) with dew shield; 23.75" (603mm) without dew shield
Optical Tube Weight 9.6 lbs.
Dew Shield Included? Yes
OTA Mount Type Vixen-Style Dovetail
Finder Included None
Diagonal Included? Yes - 2" Star Diagonal
Focuser Size 2"
Focuser Style Rack & Pinion
Focusing Speeds Two-Speed
Tripod Type Included Adjustable with Steel Legs
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Included Items

Included Items

  • Explore Scientific 102mm f/7 Essential Series Air-Spaced APO Triplet Refractor
  • Bresser EXOS-2 GoTo Equatorial Mount
  • Bresser Sky Tracker Hand Controller
  • 9.9 lb. Counterweight
  • Polar Finder
  • Adjustable Steel Tripod
  • 2" Diagonal with 99% Reflectivity
  • 2" Dual-Speed Rack & Pinion Focuser
  • Cradle Rings with Handle
  • Vixen Dovetail
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