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Explore Scientific 102mm f/7 Classic White "Essential Series" Air-Spaced Triplet ED Apochromatic Refractor Telescope, 1.14 arc sec, 2-Speed Focuser

SKU: ES1020701 MFR: ES- ED10207-01
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Key Features

  • Enjoy sharp views with the 102mm aperture, perfect for detailed astronomical observations.
  • Explore deep-sky objects using this refractor telescope's excellent light-gathering capabilities.
  • Achieve precise focusing with the smooth, dual-speed focuser for crisp, clear images.
  • Benefit from superior optical quality thanks to the ED apochromatic triplet lens design.
  • The Explore Scientific telescope offers great portability for stargazing on the go at only 11 lbs.
  • Capture stunning visuals with enhanced multilayer coatings that maximize light transmission.
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Special Order?Estimated to Ship: 09/14/2025
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Questions & Answers

Caleb M : Does this scope use a traditional dovetail mounting system?ANDREW R : Per the product overview: "To attach your Explore Scientific Air-Spaced Triplet telescope to a variety of mounts, a "Vixen-style" dovetail is included. The "Vixen-style" plate fits mounts made by Explore, Meade, Celestron, Vixen & others."
Shopper : Why Did You Choose This?JOSE L : My son liked it.ALAN S : good price for a triplet Apo Chromatic refractor !!RICHARD K : astrophotographySean M : I was looking for a good TRIPLET APO refactor telescope for deep space photography. I was going to get the Orion 80CT but this scope a 102 with better optics and a better price. Both these companies Explore Scientific and Adorama are well run companies and can be trusted. I did my homework so I look forward to the photos!!

Reviews about this item

Review Summary

2021-12-25T13:35:26

Rated 5 out of 5

No clouds . . . Then a review.

When there are no clouds

Dawson L.

2021-09-14T09:37:06

Rated 5 out of 5

Outstanding scope. Absolutely a smart purchase for visual or photography.

Optically amazing. You will not find better glass with this aperture at this price point. I am exceptionally pleased with making this purchase and would do so again in a heartbeat. There are a couple minor nits to pick, but every product has them, so I don't believe it's worthwhile to dock stars for them. Like: - 102mm of aperture! - Outstanding optics. Pinpoint sharp stars. Sharpest scope I own, now. - Excellent resolution (~1.14 Dawes limit). - f/5.6 with a 0.8x reducer (compatible with a number of different reducer/flattener brands) - Light weight. - Includes all the backfocus spacers you'll need. Dislikes/Nits: - The carry handle is annoying for attaching peripherals, but not excessively so. - Focuser is quite smooth except at a small pinch point every full rotation, but it's only noticeable when using the gross adjustment knob. I didn't notice the same issue using the fine adjustment knob. - My copy arrived with a small dent in the dew shield. It is unclear whether the damage was missed by QA or occurred in transit, but the package was not in the greatest shape when it arrived so I'm assuming the latter. Regardless, the damage is cosmetic-only and did not affect collimation or performance of the OTA.

Daniel P.

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Explore Scientific ES- ED10207-01 Specifications

  • Optical Design

    Air-Spaced Triplet EDApochromatic Refractor with HOYA Dense Fluor Crown, FCD1 ED Glass

  • Clear Aperture

    102mm

  • Focal Length

    714mm

  • Focal Ratio

    f/7

  • Resolving Power

    1.14 arc seconds

  • Coatings

    EMD (Enhanced Multilayer Deposition) Coatings

  • Focuser

    Ten-to-One Dual-Speed Crayford-Style, with Adjustable Tension and Lock

  • Limiting Stellar Magnitude

    12

  • Tube Size (L x W)

    650 x 102mm / 25.59 x 4.01"

  • Weight

    11 lbs / 5 kg

  • UPC Code

    812257014958

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12 Accessories for Explore Scientific 102mm f/7 Classic White "Essential Series" Air-Spaced Triplet ED Apochromatic Refractor Telescope, 1.14 arc sec, 2-Speed Focuser

  • All Accessories (12)
  • Eyepieces & Accessories (12)Required Item

About Explore Scientific ES- ED10207-01

FEATURED REVIEWS

No clouds . . . Then a review.

By Dawson L.

When there are no clouds

Outstanding scope. Absolutely a smart purchase for visual or photography.

By Daniel P.

Optically amazing. You will not find better glass with this aperture at this price point. I am exceptionally pleased with making this purchase and would do so again in a heartbeat. There are a couple minor nits to pick, but every product has them, so I don't believe it's worthwhile to dock stars for them. Like: - 102mm of aperture! - Outstanding optics. Pinpoint sharp stars. Sharpest scope I own, now. - Excellent resolution (~1.14 Dawes limit). - f/5.6 with a 0.8x reducer (compatible with a ...

View full Review

Be captivated by the celestial wonders with the Explore Scientific 102mm f/7 Classic White "Essential Series" Air-Spaced Triplet ED Apochromatic Refractor Telescope. This high-performance instrument is specifically designed for wide field observing and astrophotography, delivering research-level image quality that will satisfy the most discerning stargazers and photographers.

This telescope boasts a true three-element apochromatic design, ensuring superior sharpness and color correction. The use of ED (Extra-low Dispersion) FCD1 (Dense Fluor Crown) glass, developed and manufactured by Hoya Optical of Japan, is a testament to Explore Scientific's commitment to providing top-tier optics. This high-quality glass material significantly reduces chromatic aberration, resulting in images that are crisp, clear, and full of detail.

The Explore Scientific 102mm f/7 Classic White "Essential Series" Air-Spaced Triplet ED Apochromatic Refractor Telescope also features a deluxe two-speed Crayford-style precision focuser. This advanced focuser allows for fine adjustments, ensuring that you can achieve and maintain perfect focus for your observations or photography sessions.

To further enhance your viewing experience, this telescope is equipped with EMD (Enhanced Multi-layer Deposition) Coatings. These proprietary coatings are applied to all Explore Scientific lenses in multiple layers, effectively eliminating light scatter and maintaining high image contrast. The optical tube also includes multiple baffles that mask and deflect unwanted stray light, further enhancing contrast and image quality.

Lightweight yet rugged, this telescope is designed for portability without compromising on performance. Whether you're a seasoned astronomer or a budding astrophotographer, the Explore Scientific 102mm f/7 Classic White "Essential Series" Air-Spaced Triplet ED Apochromatic Refractor Telescope is a reliable tool that will help you explore the universe in stunning detail.

Explore Scientific ES- ED10207-01 Features

  • 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, a "Vixen-style" dovetail is included. The "Vixen-style" plate fits mounts made by Explore, Meade, Celestron, Vixen & others.

Key Features

  • Enjoy sharp views with the 102mm aperture, perfect for detailed astronomical observations.
  • Explore deep-sky objects using this refractor telescope's excellent light-gathering capabilities.
  • Achieve precise focusing with the smooth, dual-speed focuser for crisp, clear images.
  • Benefit from superior optical quality thanks to the ED apochromatic triplet lens design.
  • The Explore Scientific telescope offers great portability for stargazing on the go at only 11 lbs.
  • Capture stunning visuals with enhanced multilayer coatings that maximize light transmission.

What's in the box:

  • Explore Scientific 102mm f/7 ED Apochromatic Triplet Essential Refractor Telescope
  • 2 " Dual-Speed Rotatable Focuser
  • "Vixen-style " Dovetail
  • 2 " Diagonal
  • 1.25 "Compression Ring Adapter
  • Explore Scientific Warranty