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Explore Scientific

Explore Scientific Triplet AirSpaced ED Apochromatic 127mm f/7.5, 952mm Focal Length Refractor OTA Telescope with EMD Coating, Deluxe Case & Accessories

SKU: ESEDAR127 MFR: TED12707500
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About this item

Explore Scientific's 127mm f/7.5 telescope is an air-spaced triplet ED APO refractor telescope that utilizes Hoya ED glass. This telescope comes equipped with a 99% dielectric-coated 2-inch diagonal and also includes a 8x50 viewfindermaking it easy while searching for celestial objects.

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 atraditional 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 10:1 two-speed focuser, a 2" 99% reflective dielectric diagonal, an 8x50 erect-image, illuminated-reticle viewfinder, and a deluxe case.

You can be confident that thequality and construction of these telescopes will allow heavy use for many yearsand 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 acompression ring to prevent the eyepiece or camera barrel from scoring.

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.

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.

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.

What's Included With This Item

  • ED Apochromatic 127mm f/7.5 Refractor OTA Telescope
  • 99% Dielectric-Coated 2" Diagonal w/1.25" Adapter
  • 8x50 Viewfinder
  • 2-Speed Focuser w/Adjustable Tension & Lock
  • Removable Dew Shield
  • Front/Rear Dust Covers
  • Cradle Rings w/Handle
  • Universal Saddle Plate
  • Deluxe Heavy Duty Case
  • Explore Scientific U.S.A. Five Year* Limited Warranty (* One-Year Limited Warranty, Extendable to Five Years (transferable) Upon Registration)- Note: Eyepieces Sold Seperatly, Mount Not included

Key Features

  • Clear Aperture: 127mm
  • Focal Length: 952mm
  • Focal Ratio: f/7.5
  • Resolving Power: .9 arc seconds
  • Coatings: EMD (Enhanced Multilayer Deposition)
  • Limiting Stellar Magnitude: 13
  • Maximum Practical Visual Power: 500x
  • Lowest Useful Visual Power: 14.5x
  • Focuser: Ten-to-One 2-Speed Crayford-Style, with Adjustable Tension and Lock
  • Viewfinder: 8x50 Straight; Correct Image; Illuminated Reticle; Adjustable Objective and Eyepiece Focus; Dual-Ring, Six-Point, Bracket with Quick Release Shoe
  • Saddle Plate: Fits Explore Scientific Mounts; Vixen Mounts; Meade LXD55/75 Mounts
  • Tube Diameter: 130mm
  • Tube Construction: Aluminum; Stainless Steel

Technical Specs

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 Construction: Aluminum; Stainless Steel
Optical Tube Assembly Weight: With all standard accessories: 22 lbs; 9.97 kgs.
Warranty: U.S.A. One-Year Limited Warranty, Extendable to Five Years (transferable) Upon Registration
Shipping Carton Dimensions: 38" x 17" x 14"
Shipping Weight: 55 lbs; 24.9 kgs.
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