Explore Scientific ED102 102mm f/7 Triplet APO Refractor Telescope

APO Optics, Zero Chromatic Aberration—Perfect for Imaging

Frustrated with color fringing in your deep-sky images? The Explore Scientific ED102 eliminates distortion with its premium HOYA FCD1 ED glass and air-spaced triplet design, delivering razor-sharp, true-color clarity in every shot.

Features

• True Apochromatic Performance – Air-spaced triplet lens design with HOYA FCD1 ED glass eliminates chromatic aberration for razor-sharp, color-accurate images.
• 714mm Focal Length (f/7) for Deep-Sky & Planetary Imaging – Delivers detailed views of deep-sky objects while retaining excellent planetary imaging capabilities.
• Diffraction-Limited Clarity – 1.14 arcsec resolution and 12.5 limiting magnitude reveal intricate planetary and deep-sky details.
• Premium Multi-Coated Optics – Proprietary EMD enhanced multi-layer coatings maximize light transmission and reduce reflections for high-contrast astrophotography.
• Solid, Smooth Rack-and-Pinion Focuser – 2-inch precision focuser with extension tubes ensures rock-solid stability, even with heavy imaging gear.
• Versatile & Portable Design – At just 12 lbs (5.4 kg) and 23.75” tube length (without dew shield), this scope is both travel-friendly and powerful.

The Explore Scientific ED102 is for you if…

• You want an APO triplet with no color fringing – Capture deep-sky objects in razor-sharp clarity without false color distortions.
• You need a telescope that balances power and portability – The 102mm aperture gathers enough light for imaging while remaining light enough for travel.
• You plan to capture stunning astrophotography images – Compatible with a variety of cameras, the ED102 delivers sharp, high-contrast views, with the option to enhance edge-to-edge clarity using a field flattener.
• You’re looking for stable, precise focusing – The rack-and-pinion focuser supports heavy cameras without shifting, perfect for long-exposure shots.
• You prefer a telescope you can customize and upgrade – The ED102 is perfect for advanced users who already own accessories or want to tailor their setup for their imaging needs.

The Explore Scientific ED102 isn’t just another refractor—it’s a true apochromatic telescope built for high-performance imaging. If you’ve been disappointed by chromatic aberration in lesser scopes, this triplet design delivers sharp, true-color images of nebulae, galaxies, and planets.

With 102mm aperture and an f/7 focal ratio, the ED102 strikes the perfect balance between light-gathering power and portability. It’s compact enough for easy transport to dark sky sites but powerful enough to reveal intricate celestial details in deep-sky and planetary observation.

For imaging enthusiasts, stability is everything. The 2-inch rack-and-pinion focuser ensures precise, repeatable focus—even when supporting heavy cameras and accessories. Say goodbye to focus shift ruining your long-exposure shots. Pair it with a field flattener, and you’ll enjoy a beautifully corrected imaging field, free of distortions at the edges.

Unlike bulky reflectors or fast doublets, the ED102 is designed to grow with your passion. Whether you're upgrading your imaging setup, fine-tuning your visual observations, or traveling to remote dark-sky sites, this telescope is built to deliver professional-level performance for years to come.

What’s Included in the Explore Scientific ED102 Package?

• Explore Scientific ED102 APO Triplet Refractor Telescope – True apochromatic optics for color-accurate imaging.
• Two-Speed 2" Rack-and-Pinion Focuser with 2 Extension Tubes – Ensures smooth, precise focus adjustment, even for long-exposure imaging.
• Cradle Rings with Handle – Provides secure mounting and an easy-grip handle for portability.
• Vixen-Style Dovetail Plate – Universally compatible with most equatorial mounts for quick setup.
• Explore Scientific 2N1 Finder Scope Base – Pre-installed for quick attachment of your preferred finder scope (finder not included).
• 99% Reflective 2" Diagonal – High-reflectivity dielectric coating for bright, true-color visuals.

Recommended Accessories

• Explore Scientific Field Flattener – Eliminate field curvature for sharp, pinpoint stars across your entire image frame—ideal for astrophotographers.
• Explore Scientific EXOS2-GT Equatorial Mount – Long-exposure imaging requires precise tracking. This GoTo-capable mount keeps your telescope rock-steady while automatically locating celestial objects.
• Explore Scientific Twilight I Alt-Azimuth Mount – Perfect for quick, hassle-free visual observing. Lightweight yet stable, ideal for grab-and-go stargazing.
• Explore Scientific 8x50 Illuminated Right Angle Polar Finder Scope – Essential for precise polar alignment. Find celestial objects faster and improve tracking accuracy.
• Explore Scientific Soft-Sided Telescope Case – Protect your investment from dust, moisture, and accidental bumps—ideal for safe transport and storage.