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Explore Scientific ED127 Triplet APO Refractor Package - Carbon Fiber

Item # ES-EDT127075-CF

Availability: Scheduled Delivery

$2,499.99
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Quick Overview

  • The Explore Scientific ED127 is an f/7.5 Air-Spaced Triplet Apochromatic Refractor Telescope design with a carbon fiber optical tube.
  • The design includes genuine HOYA FCD1 (Dense Fluor Crown) ED (Extra-low Dispersion) glass, a critical element to produce images that refractor afficianados know can only be obtained with a high-quality true apochromat.
  • The Explore Scientific ED127 includes a ten-to-one, two-speed Crayford-style precision focuser with tension adjustment and lock to obtain and hold perfect focus.
  • Carbon fiber telescope tube and dew shield for its high strength-to-weight ratio and low expansion characteristics when subjected to temperature variations.
  • This package includes a case, 2" diagonal, and more!

Explore Scientific Carbon Fiber ED127 f/7.5 Air-Spaced Triplet Apochromatic Refractor

The Explore Scientific 127mm f/7.5 Air-Spaced Triplet ED APO produces a visual experience that is often compared to much larger aperture reflector telescopes. The contrast and resolving power can reveal stunning detail on planets and deep sky objects alike.

The Explore Scientific Carbon Fiber ED127 f/7.5 Air-Spaced Triplet Apochromatic Refractor as shown on the sturdy and smooth Twilight II Mount with the optional pier extension.

The designers of the Air Spaced Triplet ED Apo Series pursued to produce top-quality refractors with lasting value. The optical solution was to provide a traditional air-spaced design mounted in a rugged, adjustable lens cell. This design, shaped from experienced craftsmanship and polished from genuine HOYA™ FCD1 (Dense Fluor Crown) ED (Extra-low Dispersion) glass, a critical element to produce images that refractor afficianados know can only be obtained with a high-quality true apochromat.

The owner of an Explore Scientific ED Apo will appreciate the attention to detail and the standard hardware which includes a precision two-speed focuser, a 2" 99% reflective dielectric diagonal, and a deluxe case. You can be confident that the quality and construction of these telescopes will allow heavy use for many years and are backed with a transferrable Five Year USA Limited Warranty.

EMD™ (Enhanced Multilayer Deposition) Coatings eliminates light scatter and maintains image contrast. Contrast is further enhanced with multiple baffles that mask and deflect unwanted stray light.

All Explore Scientific ED Apochromatic Refractor telescopes include a precision Ten-to-One, Dual-Speed Focuser as standard equipment. The eyepiece holder uses a compression ring to prevent the eyepiece or camera barrel from scoring.

Exploring the fine features around the Moon's Hadley Rille will put to test observing skills of any astronomer as well as precision of telescope optics. Better optical quality dictates more precise focusing.

This is especially true when observing at high magnification or when making CCD images. With a standard focuser, you will find that a tiny nudge will throw out focus and turn your night into one of frustration.

So Explore Scientific included as standard equipment, on all ED Apos, a ten-to-one, two-speed Crayford-style precision focuser with tension adjustment and lock to obtain and hold perfect focus. They think you'll agree that such precision is worth it.

Explore Scientific precision collimates every Explore telescope at their factory to give optimum performance. Although you may never need to adjust optical alignment, the ED Apos allow for optical centering to collimate the lens elements should the telescope ever require it. One of the bonuses of ownership of a refractor is that, compared to standard reflector telescopes, they almost never require re-aligning of the optics (collimation). However, any telescope that is subjected to shock may require optical alignment.

Removing the dew shield, you can access the alignment screws, which you can adjust yourself by referring to the instructions. You can also send it to Explore Scientific’s Service Center for alignment. A standard service charge applies.

The Two Inch Dielectric Diagonal includes a 1.25" eyepiece holder adapter and dust covers to protect the mirror. The purpose of a diagonal is to securely hold your eyepiece and to give you a comfortable viewing angle.

Provided as standard equipment, Explore Scientific's Two Inch Dielectric Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment. Ultra-high reflective coatings (99% reflective) composed of multiple thin layers of dielectric material delivers maximum light output.

Both 2" and 1.25" eyepiece holders use compression rings instead of a simple set-screw to more securely hold your valued eyepiece (or imaging device) and to minimize scoring of eyepiece barrels. You can thread standard 48mm filters into the barrel.

While it's true that ED Apos in this aperture usually have short focal lengths, it still is a challenge to successfully aim the telescope without a viewfinder. So Explore Scientific decided to offer a superior class 8x50 viewfinder as standard equipment.

The illuminated reticle of the 8x50 Viewfinder with its scale markings and open center not only helps you center objects precisely, but gives a reference of the exact field of view in degrees. The deep red illumination is continuously variable to provide the desired brightness.

The Explore Scientific 8x50 produces a wide 6° field of view and allows precision focus of both main objective and eyepiece illuminated reticle. A precision polished roof prism produces images that are right-side-up, left-to-right correct. In other words, things are not upside-down and backwards like most viewfinders. The illuminated reticle is truly designed for finding objects with its open center (so you don't mask the object you are centering with cross hairs) and scale markings for 1.5°, 3°, and 4.5° (the edge of the field of view is the 6° boundary).

The 55° apparent field, long eye-relief eyepiece produces a bright 15.5mm exit pupil and will allow you to find faint galaxies, comets, and nebulae. All optics are fully-multicoated to insure maximum contrast.

Although it cost more, Explore Scientific chose carbon fiber for the telescope tube and dew shield for its high strength-to-weight ratio and its low expansion characteristics when subjected to temperature variations. This helps to keep the instrument light in weight and keeps the instrument focused even if the temperature drops.

Even though this telescope uses a carbon fiber tube making it much lighter, they supply a handle to easily grip the telescope for mounting and placing it back in its case. In addition Explore Scientific slots the handle to accept a standard 1/4x20 bolt to attach a camera.

The Universal Adjustable Mounting Plate of the ED 127 fits on mounts supplied by Explore Scientific, Vixen, and Meade LXD55/75. It also attaches to photo tripods with standard USA or European thread attaching knobs. You can mount the ED 127 to many popular equatorial and Altaz mounts, including Explore Scientific mounts.

Buy a telescope for yourself or give it as a gift, then send in the registration form to receive a free extended five year warranty in the USA!

All Explore Scientific telescopes and telescope accessories are covered under our standard U.S.A. One Year Limited Warranty against defects with proof of purchase, but you can extend this limited warranty to five years by simply filling out the product registration and submit it in within 60 days.

This program is also available to the person who receives your gift of an Explore Scientific telescope. You don't need to give them the purchase receipt, just remind them to fill out the registration and submit it, and we'll take care of the rest.

Explore Scientific Product Number: TED127075-CF

Mount shown is sold separately.

SKU ES-EDT127075-CF
Manufacturer Explore Scientific
Telescope Series Explore Triplet ED
Optical Design Refractor - Apochromatic
Mount Type None - Optical Tube Only
Warranty Lifetime Warranty
Telescope Aperture 5"
Telescope Focal Length 952mm
Telescope Focal Ratio f/7.5
Highest Useful Magnification 500x
Limiting Stellar Magnitude 13
Optical Coatings Explore EMD
Tube Color or Finish Carbon Fiber
Optical Tube Outer Diameter 130mm
Length of Optical Tube 41.75"
Optical Tube Weight 11 lbs.
Mount Weight N/A
Total Telescope Weight N/A
Dew Shield Included? Yes
OTA Mount Type Dual Rings
Finder Included None
Diagonal Included? Yes - 2" Star Diagonal
Eyepiece(s) Included None
Case Included? Yes
Tripod Type Included None, Sold Separately
  • Explore Scientific Carbon Fiber ED127 f/7.5 Air-Spaced Triplet Apochromatic Refractor
  • 2" Diagonal
  • 10:1 Focuser
  • Dew Shield
  • Cradle Rings
  • Carrying Handle
  • Vixen-Style Dovetail
  • Deluxe Case

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