Sky-Watcher Esprit 100EDX 100mm f/5.5 Air-Spaced Triplet Super Apochromat Refractor Telescope

SKU: SKWS11435 MFR: S11435
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Key Features

  • Experience stunning celestial views with the 100mm aperture, revealing intricate details of distant galaxies.
  • Capture breathtaking astrophotography thanks to the f/5.5 focal ratio, perfect for deep-sky imaging.
  • Enjoy crystal-clear, color-true images with the advanced triplet apochromatic lens design, minimizing chromatic aberration.
  • Effortlessly transport your telescope with its manageable 16 lbs weight, ideal for stargazing on the go.
  • Achieve precise focusing for both visual observations and imaging with the smooth dual-speed linear rail focuser.
  • Set up quickly and securely using the included D-style dovetail and tube rings, ensuring stable viewing.
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Temporarily On Backorder?Expected Availability: 07/2026
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Sky-Watcher Esprit 100EDX Specifications

Optical

Optical

Jump to...
  • Optical Design

    Super-Apochromatic

  • Lens Coating

    Fully multi-coated

  • Lens design

    ED Triplet (Air Spaced)

  • Optical Quality

    Diffraction limited (1/4 wave)

  • Collimatable Cell

    Yes (Push/Pull Cell)

  • Primary Aperture

    100mm

  • Focal Ratio

    f/5.5

  • Focal Length

    550mm

Observational Info

Jump to...
  • Dawes Limit

    1.16

  • Rayleigh Limit

    1.4

  • Limiting Magnitude

    12.5

  • Minimum Magnification

    14x

  • Maximum Magnification

    197x

  • Light Gather

    204% (compared to Esprit 70EDX)

  • Intended use

    Visual/Imaging

Mechanical

Jump to...
  • Focuser Type

    Linear Rail Rack & Pinion

  • Focuser Size

    3.4" (86.36mm)

  • Focuser (Dual or Single Speed)

    Dual speed (11:1 ratio)

  • Focuser

    Yes (Rotatable)

  • Camera Adjuster

    Yes

  • Compression Ring

    Yes

  • Drawtube thread size

    M74x1

  • Retractable dew shield

    No

  • OTA material

    Aluminum

  • Dew Shield diameter

    5.7" (144.78mm)

  • Mounting Rings

    Yes

  • Mounting Ring hole thread size

    1/4-20 (top threads)

  • Dovetail type

    D-style

  • Dovetail length

    6.75" (171.45mm)

  • Optical Tube length

    Retracted/Extended: 22.25" (565.15mm) (fixed)

  • Optical Tube weight

    16 lbs (7.25kg) (with included accessories)

  • UPC Code

    810098970716

About Sky-Watcher Esprit 100EDX

The Elite Astrographs for The Rest of Us
Designed with the discerning astrophotographer in mind, Sky-Watcher's ALL NEW top-of-the-line Esprit EDX refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more. With the Esprit's three-element, air-spaced objective lens design, false color is virtually eliminated, yielding exceptional contrast and sharpness. Each element is fully multi-coated with Sky-Watcher's proprietary Metallic High-Transmission Coatings (MHTC), producing a transmission rate that rivals any refractor on the market.

In addition to superb optics, all Esprits feature exclusive dual-speed, Helinear track focusers, which provide smooth, rock-solid focusing with zero image shift. Using a Camera Angle Adjuster which is found on the end of the focuser drawtube and allows for orientation of your camera or eyepieces without needing to rotate the entire focuser. All Sky-Watcher Esprit EDX refractors come with mounting rings, dovetail plate, camera adapter, and foam-lined hard case.

Unsurpassed Performance
Esprit EDXs use three-element air-spaced optics to deliver images equal to scopes costing thousands of dollars more.

Award-winning Optics
All Sky-Watcher Esprit EDXs use laboratory matched lens assemblies, including extra-low dispersion elements, for unrivaled clarity and color correction.

Exclusive Linear-track Focuser
Sky-Watcher's exclusive focuser design combines a rock-solid platform with zero image shift.

Sky-Watcher Esprit 100EDX Features

  • Triplet super-apochromatic design
  • Three-element, air-spaced optical assembly virtually eliminates false color
  • 100mm aperture, 550mm focal length, f/5.5 focal ratio
  • FPL-53 glass
  • 3.4" linear rail rack-and-pinion with micro focus
  • Aluminum optical tube with white, glossy finish
  • Camera Angle Adjuster and rotatable focuser
  • Sturdy carry handle attaches to tube rings

Key Features

  • Experience stunning celestial views with the 100mm aperture, revealing intricate details of distant galaxies.
  • Capture breathtaking astrophotography thanks to the f/5.5 focal ratio, perfect for deep-sky imaging.
  • Enjoy crystal-clear, color-true images with the advanced triplet apochromatic lens design, minimizing chromatic aberration.
  • Effortlessly transport your telescope with its manageable 16 lbs weight, ideal for stargazing on the go.
  • Achieve precise focusing for both visual observations and imaging with the smooth dual-speed linear rail focuser.
  • Set up quickly and securely using the included D-style dovetail and tube rings, ensuring stable viewing.

What's in the box:

  • Sky-Watcher Esprit 100EDX 100mm f/5.5 Air-Spaced Triplet Super Apochromat Refractor Telescope
  • Tube Rings
  • D-Style Dovetail
  • M48 Camera Adapter
  • Padded Hard Case
  • Sky-Watcher 2 Year Limited Warranty