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Explore Scientific ED127 Essential Series Air-Spaced Triplet Refractor Telescope

SKU ES-ED127075-04
Original price $0.00 - Original price $0.00
Original price $0.00
$1,999.99 - $1,999.99
Current price $1,999.99
In stock

Ships To: United States & Canada 🇺🇸 🇨🇦

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We offer a 30 Day Return Policy on most of the products that we carry.

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The vast majority of products that we sell, with a few exceptions, are covered under Warranty.

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Explore Scientific ED127mm f/7.5 Air-Spaced APO Triplet Refractor

Introducing the Explore Scientific ED127mm Essential Series Air-Spaced Triplet Refractor Telescope, a Classic Refinement for Astrophotographers:

  • Precision Front Cell: Equipped with a redesigned front cell featuring push-pull adjustments for precise tilt and centering, ensuring optimal collimation and pinpoint stars.
  • Upgraded Focuser: Enjoy the new 2-inch two-speed rack and pinion focuser with robust locks and rotation adjustment, providing stability for your imaging setup.
  • Enhanced Portability: A retractable dew shield adds convenience and portability to your stargazing adventures.

This telescope has a proven track record, catering to the needs of astrophotographers and meticulous visual astronomers.

It utilizes genuine HOYA FCD1 ED glass to unveil the wonders of the night sky in exquisite detail.

With true apochromatic performance, diffraction-limited optics, and ample aperture, this versatile model effortlessly showcases celestial TREASURES.

From the majestic edge-on Sombrero Galaxy to the captivating Pinwheel Galaxy and even the intricate Hadley Rille on the Moon, this telescope captures them all with precision.

Its air-spaced triplet optical design virtually eliminates chromatic aberrations, producing high-contrast, brilliant images.

This is achieved through the combination of authentic FCD1 HOYA extra-low dispersion (ED) glass and proprietary EMD enhanced multi-layer coatings on every optical surface.

The telescope's cradle rings are thoughtfully designed, featuring a built-in handle for secure grip.

Image Taken Using Explore Scientific ED127mm f/7.5 Essential Series Air-Spaced Triplet Refractor Telescope

The handle's top face is slotted to accommodate a 1/4x20 bolt for "piggyback" imaging with a DSLR. The bottom of the cradle ring includes a V-block (Vixen-style) plate for easy attachment to your equatorial mount.

Additionally, the Explore Scientific 2N1 Finder Scope Base is pre-installed (finder scope sold separately). Elevate your astrophotography and visual astronomy with this refined instrument.



  • 127mm Objective Lens: This telescope is equipped with a 127mm (5-inch) objective lens, which provides excellent light-gathering capabilities for clear and detailed observations. The large aperture enhances your ability to capture faint celestial objects with clarity.
  • 250x Highest Useful Magnification: With a maximum useful magnification of 250x, this telescope allows you to zoom in on celestial objects, revealing fine details on the moon, planets, and deep-sky targets. The high magnification capability is valuable for detailed observations of various astronomical phenomena.
  • 952mm Focal Length: The telescope has a focal length of 952mm, which is ideal for both visual observation and astrophotography. It provides a balance between magnification and field of view, making it versatile for a range of astronomical activities.
  • Air-Spaced Triplet Optical Design: The air-spaced triplet optical design virtually eliminates chromatic aberrations, ensuring that your observations are free from color fringing and delivering high-contrast, sharp images. This design enhances the optical performance for a more enjoyable stargazing experience.
  • HOYA FCD1 ED Glass: The telescope uses genuine HOYA FCD1 ED glass, which offers excellent color correction and minimizes optical aberrations, resulting in true-to-life colors and clear views of celestial objects. The use of high-quality glass contributes to the telescope's optical precision.
  • Multi-Coated Optics: The optical surfaces of the telescope are fully multi-coated with proprietary EMD enhanced multi-layer coatings. These coatings enhance contrast, reduce glare, and maximize light transmission, ensuring bright and vivid observations. The multi-coated optics contribute to the overall image quality.
  • Precision Front Cell: The telescope features a precision front cell with push-pull adjustments for tilt and centering, allowing you to achieve the best collimation for pinpoint stars. This feature ensures precise alignment, optimizing the telescope's performance.
  • Two-Speed Rack and Pinion Focuser: The 2-inch two-speed rack and pinion focuser include heavy-duty locks and rotation adjustment, providing stability for your imaging system and precise focusing control. The focuser enhances the telescope's adaptability for different observational needs.
  • Retractable Dew Shield: The telescope comes with a retractable dew shield, enhancing portability and protecting the objective lens from dew formation during extended observation sessions. The dew shield adds convenience and reliability to your stargazing sessions.
  • Cradle Rings with Handle: The cradle rings include a built-in handle for secure handling and easy transportation. The top face of the handle is slotted, allowing for "piggyback" imaging with a DSLR. This design feature enhances the telescope's ease of use and transportability.
  • 2N1 Finder Scope Base: The telescope is equipped with the Explore Scientific 2N1 Finder Scope Base, providing flexibility for attaching a finder scope (finder scope sold separately). This feature adds versatility to your observational setup.
  • Versatile Application: This telescope is suitable for both visual astronomy and astrophotography, making it an excellent choice for amateur astronomers looking for a versatile instrument. Whether observing celestial wonders or capturing them through photography, this telescope accommodates a range of astronomical pursuits.
  • Included Accessories: The package includes a 2-inch diagonal with extension tubes, a cradle ring with a handle and Vixen-style dovetail, a 2-inch two-speed rack-and-pinion focuser, a dew shield, an Explore Scientific 2N1 Finder Scope Base, and the assurance of a limited 1-year warranty.


Recommended accessories:

For continuous stargazing sessions without interruptions from dew, ensuring optical clarity, and safeguarding your valuable equipment, contemplate the optional AstroZap 5-inch Dew Heater Strap, meticulously designed for the ED127mm Air-Spaced Triplet Telescope.

AstroZap - Dew Heaters and Controllers

AstroZap's reliable dew-fighting solutions are tailored to enhance your telescope's performance and longevity, making them an ideal companion for your astronomical adventures.


                                                    What's Included:

                                                    ✓ Explore Scientific 127mm Essential Series Triplet ED Refractor

                                                    ✓ 2" Diagonal with Ext. tubes

                                                    ✓ Cradle Ring with handle & Vixen-Style Dovetail

                                                    ✓ 2" Two-Speed rack and pinion focuser

                                                    ✓ Dew shield

                                                    ✓ Explore Scientific 2N1 Finder Scope Base

                                                    ✓ Limited 1 year warranty



                                                    Item Number  ES-ED127075-04
                                                    Focal Length  952mm
                                                    Focal Ratio  f/7.5
                                                    Limiting Magnitude  13
                                                    Resolution  .9 arcsec
                                                    Tube Length w/ Dew Shield  41.75"; 1060mm
                                                    Tube Length w/out Dew Shield  33.25"; 849mm
                                                    Diameter  130mm
                                                    Weight  18lb; 8.16kg
                                                    Dovetail  Vixen

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