Home :: Telescopes :: Explore Scientific :: ED Triplet Essential Series :: Explore Scientific 127mm f7.5 Triplet ED APO Classic White Essentials Series

Explore Scientific 127mm f7.5 Triplet ED APO Classic White Essentials Series

Explore Scientific 127mm f7.5 Triplet ED APO Classic White Essentials Series

Great for astrophotography, Explore Scientific’s 127mm Apochromatic Refractor can capture in stunning detail many of the night sky’s most notable treasures.

With its true diffraction-limited optics and ample aperture, this versatile model can showcase deep sky delights like the edge-on Sombrero Galaxy with its distinct bulging center or the spiraling beauty of the face-on Pinwheel Galaxy as easily as it can reveal the intricacies of the Moon’s winding Hadley Rille.

Featuring an air-spaced triplet optical design that virtually eliminates chromatic aberrations, this telescope generates brilliant high-contrast images by combining genuine HOYA extra-low dispersion (ED) glass and proprietary EMD enhanced multi-layer coatings on all optical surfaces. As an added bonus, its quick set-up allows you to spend more time at the eyepiece to make the most of your nights under the stars.


  Description ED127mm Essential Series Aluminum Air-Spaced Triplet Refractor
  Item Number ES-ED127075-03
  Focal Length 952mm
  Focal Ratio f/7.5
  Resolution .9 arcsec
  Tube Length
w/ Dew Shield
41.75"; 1060mm
  Tube Length
w/out Dew Shield
33.25"; 849mm
  Diameter 130mm
  Weight 22lb; 10kg
  Dovetail Vixen







Explore Scientific uses ED (Extra-low Dispersion) FCD1 (Dense Fluor Crown) glass developed by Hoya Optical of Japan to enable the production of lenses that offer superior sharpness and color correction by minimizing the color dispersion (chromatic aberration, or the "false" color fringing seen around bright objects that happens when light rays pass through standard crown-and-flint doublet objectives). This glass type offers a more durable and long lasting solution to produce an optic to minimize chromatic aberration over delicate fluorite crystal objectives that are prone to fracturing and absorbing moisture. High Performance Optics Demand a High Precision Focuser 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 we included as standard equipment, on all Explore Scientific ED Apos, a ten-to-one, two-speed Crayford-style precision focuser with tension adjustment and lock to obtain and hold perfect focus. We think you'll agree that such precision is worth it. Optical Alignment 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. Viewing Comfort and the Preservation of Precious Light 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. We Keep You from Getting Lost in the Dark! Many premium small refractors don't include some basic accessories like a viewfinder. This is often done to keep prices down. Those manufacturers rationalize that its owner simply will not need a viewfinder... wrong! 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 we decided to offer a superior class 8x50 viewfinder as standard equipment. 8x50 Erect Image Illuminated Reticle Viewfinder 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. Our 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. Universal Mounting Plate You can mount the ED 80 to many popular equatorial and Altaz mounts, including Explore Scientific's Mounts. Photographers, who are looking for super high resolution optics, can mount the optical tube assembly to their existing medium-duty camera tripod. A release knob allows the tube assembly to rotate so that the camera can be positioned at any angle. Free Extended Warranty! 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. Standard Hardware: * Removable Dew Shield * Front and Rear Dust Covers * Cradle Rings with Handle and Universal Saddle Plate * 10:1 Two-Speed Focuser 2.0" I.D. * 8x50 Erect-Image, Illuminated Reticle Viewfinder with Six Point Adjustable Bracket * 2.0" 99% Reflective, Dielectric-Coated, Mirror Diagonal with 1.25 " Adapter * Deluxe Heavy-Duty Case Recommended Optional Accessories: Explore Scientific Mount; 82° Eyepieces; 100° Eyepieces Warranty: U.S.A. One-Year Limited Warranty, Extendable to Five Years (transferable) Upon Registration Shipping Weight: 55 lbs; 24.9 kgs. *Prices and Specifications Subject to Change Without Notice Specifications Optical Design: Air-Spaced Triplet ED Apochromatic Refractor with HOYA® Dense Fluor Crown, FCD1 ED Glass Clear Aperture: 127mm Focal Length: 952mm Focal Ratio: f/7.5 Resolving Power: .9 arc seconds Coatings: EMD™ (Enhanced Multilayer Deposition) Coatings Limiting Stellar Magnitude: 13 Maximum Practical Visual Power: 500x Lowest Useful Visual Power: 14.5x Focuser: Ten-to-One Dual-Speed Crayford-Style, w/ Adjustable Tension and Lock Viewfinder: 8x50 Straight; Correct Image; Illuminated Reticle; Adjustable Objective and Eyepiece Focus; Dual-Ring, Six-Point, Bracket w/Quick Release Shoe Cradle/Saddle Plate: Dual Ring Style - Fits Explore Scientific Mounts; Vixen Mounts; Meade LXD55/75 Mounts Tube Diameter: 130mm Tube Length: Tube Construction: Aluminum; Stainless Steel Optical Tube Assembly Weight (with all standard accessories): 22 lbs; 9.97 kgs.

SKU ES-ED127075-03
Weight 26.00 lbs
Our price: $1499.95 (1304.96)
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