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Quarter side profile of an Orion EON ED Doublet Refractor faced to the lower right alongside a 0.8x reducer.
  • Quarter side profile of an Orion EON ED Doublet Refractor faced to the lower right alongside a 0.8x reducer.
  • Side profile of an Orion EON ED Doublet Refractor faced to the right.
  • Quarter side profile of an Orion EON ED Doublet Refractor faced to the lower right.
  • Quarter side profile of an Orion EON ED Doublet Refractor faced to the upper right.
  • Quarter side profile of an Orion EON ED Doublet Refractor faced to the lower left.
  • Quarter side profile of an Orion EON ED Triplet refractor faced to the upper left.
  • Close up view of an Orion EON ED Doublet Refractor's front objective lens with dew shield fully extended.
  • Side profile of an Orion EON ED Doublet Refractor faced to the left with a storage case.
  • Front facing view of the hard case included with the Orion EON ED Doublet Refractor.
  • An Orion 0.8x Reducer-Flattener stood upright.
  • Quarter side profile of an Orion 0.8x Reducer-Flattener with the bottom side faced to the lower left.
  • Quarter side profile of an Orion 0.8x Reducer-Flattener with the top side faced to the lower left.
  • Quarter side profile of an Orion 0.8x Reducer-Flattener with the bottom side faced to the lower right.
  • Quarter side profile of an Orion 0.8x Reducer-Flattener with the top side faced to the lower right.
EON 102 mm ED Doublet Refractor Telescope Bundle

EON 102 mm ED Doublet Refractor Telescope Bundle

$799.95 $969.90

Exp Delivery : Thu, 12 Nov

Free shipping on orders to the contiguous U.S.

Limited Stock

Essential Accessories

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Product Details

Since 1975

Free Shipping Site-Wide

2-Year Warranty


Expert Support

The EON 102 mm ED Refractor Bundle At a Glance

  • Includes a 0.8x Focal Reducer for a wider field of view and faster imaging (f/5.6)
  • 714 mm focal length is excellent for viewing or imaging a plethora of nebulae, star clusters, and deep sky objects
  • Smooth dual-speed focusing with fine adjustment for imaging
  • f/7 focal ratio for sharp views suitable for both wide-field viewing and detailed observation
  • Weighing only 9 lbs., this refractor is incredibly portable
  • Comes with a padded soft case for safe storage and transportation

Learn More About the EON 102 mm ED Refractor Bundle

Is the EON 102 mm ED Doublet Refractor Right for You?

Featuring a 27.5% larger aperture diameter than its smaller sibling, the EON 80 mm refractor, the EON 102 mm ED Doublet Refractor is an excellent choice for those looking for a portable telescope that provides better performance when viewing deep sky objects. Designed to support the needs of both astrophotographers and visual observers, this beginner and budget-friendly refractor delivers sharp, well-corrected views, while also providing the optical performance needed to capture stunning astrophotos. It is not a great option for anyone looking to capture photos of the planets or observe dim, deep-sky objects under light-polluted skies. 

What You'll See and Why It Works

With the EON 102 mm ED Doublet Refractor, you will enjoy incredible views of our Moon, as well as bright deep sky objects, such as the Orion Nebula (M42) and the Andromeda Galaxy (M31). The f/7 focal ratio helps provide sharp views with less chromatic aberration, which is further reduced by the doublet optical design and extra-low dispersion "ED" glass. The included 0.8x reducer significantly improves the quality of your astrophotos by reducing the focal length of the telescope, while widening and flattening the field of view.

What You Should Know Before You Buy

Is the EON 102 mm good for beginners?

Yes. Thanks to the straightforward, portable, and low-maintenance design, the EON 102 mm is an excellent refractor for beginners.

Does the EON 102 mm find objects automatically?

No. The EON 102 mm does not include a telescope mount. In order to automatically track objects, you'll need to attach the optical tube to a computerized alt-azimuth or equatorial mount.

Can I take pictures with it?

Yes! The EON 102 mm is designed for both visual and astrophotography use. For quick photos or videos of the Moon and bright objects, a simple smartphone adapter is all you need to start capturing the cosmos. If you want to capture long-exposure, deep-sky astrophotos, you'll need a dedicated astronomy camera or digital camera, as well as a computerized mount that automatically tracks objects in the night sky.

What comes with the telescope?

The EON 102 mm comes with (2x) tube rings and a dovetail bar, which are pre-installed on the optical tube at the factory. It also comes with a 2" to 1.25" eyepiece adapter, front and rear dust covers, and a soft padded case.

Is it portable?

The EON 102 mm is an incredibly portable telescope, weighing in at just 9 lbs. When the dew shield is fully extended, the optical tube measures 29.5" in length. When retracted, the length is 24.5", making this refractor incredibly easy to transport. It also comes with a soft padded carry case for extra protection when on the move!

What should I buy with it first?

The most useful first upgrades are a 2x Barlow lens, a higher-power eyepiece, a Moon filter, and a smartphone adapter. For those interested in serious long-exposure astrophotography, the included 0.8x Reducer for the EON 102 mm will significantly improve the quality of your astrophotos by expanding and flattening the field of view.

What’s Included and What to Add Later

  • EON 102 mm Optical Tube: The main telescope
  • 0.8x Reducer/Flattener: An adapter that reduces the focal length of the telescope and flattens the FOV
  • 2” to 1.25” Adapter:  An adapter allowing you to use 1.25" or 2" eyepieces and accessories
  • Tube Rings (x2): These attach to the optical tube and dovetail bar to allow for a secure attachment to a compatible mount
  • Dovetail Bar: This allows you to secure the OTA on a compatible mount
  • Objective Dust Cover: Helping protect the telescope when stored
  • Focuser Dust Cover: Helping protect the focuser when stored
  • Soft Case: Used to store and transport the optical tube and included accessories

The EON 102 mm Refractor Package is designed for astrophotographers, so finding a suitable EQ computerized mount is a great addition to help with long exposure astrophotography.
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Setup, Care, and Support

This Orion EON telescope is shipped with tube rings and a dovetail bar pre-installed. After opening the package, carefully lift the assembled unit out and gently place it on the dovetail bar. The optical surfaces may occasionally require cleaning. To avoid damaging the delicate optical coating when cleaning, start by using a lens blower or soft-bristle brush to remove particles. Download and review the manual for more detailed instructions.
Orion EON 102 mm ED Doublet Refractor Manual (314.03 kB)

Key Specifications

SKU EON102ED-PKG
Model Number Orion EON ED Refractor
Telescope Optical Design Refractor
Telescope Aperture 102 mm
Telescope Focal Ratio f/7 (f/5.6 with included reducer)
Telescope Focal Length 714 mm
Number of Refractor Elements Doublet (2)
Focuser Design Rack & Pinion
Focuser Size 2.5"
Focuser Speed Dual Speed
Optical Coatings Aluminum
Optical Tube Assembly Length 24.5"-29.5"
Total Weight 9 lbs.
Telescope OTA Weight 9 lbs.
Warranty Orion StarGuard 2-Year Warranty

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