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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Sky-Watcher EDX 100 Super APO Triplet f/5.5 Telescope

Sky-Watcher EDX 100 Super APO Triplet f/5.5 Telescope

by Sky-Watcher
SKU SW-S11435
$2,093.34 - $2,093.34
$2,093.34
$2,093.34 - $2,093.34
$2,093.34
Price Match Policy!
  • 100mm Objective Lens Diameter
  • 840mm Focal Length (f/8.4)
  • Three-Element Air-Spaced Apochromatic Triplet
  • Premium FPL-53 ED Glass Element
  • 3.4-inch Linear-Track Rack-and-Pinion Focuser
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Sky-Watcher Esprit EDX 100 Super APO Triplet

    The Sky-Watcher Esprit EDX 100 is a high-performance 100mm apochromatic refractor designed for the most demanding astrophotographers. By utilizing a three-element, air-spaced objective lens design, this instrument delivers unrivaled clarity and color correction, rivaling telescopes that cost significantly more.

    Each lens assembly is laboratory-matched and includes an extra-low dispersion (ED) element to ensure that false color is completely eliminated. This results in exceptional contrast and sharpness, making the Esprit EDX 100 an elite choice for deep-sky imaging.

    Premium FPL-53 Glass and Knife-Edge Baffles

    The optical design of the 100mm model is built around a Japanese Ohara FPL-53 glass element. This high-index glass is the industry standard for minimizing chromatic aberration, allowing for pinpoint, color-free stars across the entire field.

    To further enhance contrast, the interior of the tube is equipped with a series of knife-edge baffles. These precision-placed baffles suppress stray light reflections, ensuring that your images have the jet-black background required for professional-grade astronomical data.

    Massive 3.4-inch Linear-Track Focuser

    Unlike standard refractors, the Esprit EDX 100 features an overbuilt 3.4-inch linear-track rack-and-pinion focusing system. This exclusive design provides a rock-solid platform that completely eliminates image shift during critical focusing.

    • Heavy Payload Support: The 3.4-inch drawtube is designed to support heavy imaging trains, including large-format cooled CMOS cameras and filter wheels, without flexure.
    • Micro Focus Control: A dual-speed 11:1 micro-focus knob allows for the extreme precision needed to find the perfect focal point with high-resolution sensors.
    • Integrated Rotator: The focuser assembly allows for effortless rotation of the camera to ensure your target is framed perfectly every time.

    Professional Grade Imaging

    With a focal length of 840mm and a native f-ratio of f/8.4, the Esprit EDX 100 is ideal for medium-sized nebulae and galaxy clusters. For those using full-frame sensors, an optional two-element field corrector is available to guarantee a flat field across the entire 44mm imaging plane. This combination of precision mechanics and elite optics makes it a staple for serious astrophotographers.

  • Does the Esprit EDX 100 require a field flattener?

    While the triplet objective provides excellent correction, an optional two-element field flattener is recommended for astrophotography to ensure sharp, round stars across a full 44mm image circle.

    What type of ED glass is used in this model?

    The 100mm Esprit EDX uses premium Ohara FPL-53 glass for its ED element, providing superior color correction compared to lower-grade alternatives.

    Is the focuser stronger than the 80mm or 70mm versions?

    Yes. The 100mm model is upgraded to a massive 3.4-inch linear-track focuser (compared to the 2.7-inch unit on the 70mm), specifically to handle the increased weight of larger imaging accessories.

    What mount is required for the EDX 100?

    With a tube weight of 16 pounds, we recommend a medium-duty equatorial mount such as the HEQ5-R or EQ6-R Pro for stable astrophotography.

  • SKU $11435
    Optical Design Apochromatic Triplet Refractor
    Aperture 100 mm
    Focal Length 840 mm
    F-Ratio f/8.4
    ED Glass Type FPL-53
    Focuser 3.4-inch Linear-Track Rack-and-Pinion
    Image Circle 44 mm (with optional flattener)
    Tube Weight 16 lbs
    Tube Length 22.5 inch (Fixed)
    • Sky-Watcher Esprit EDX 100 OTA

      Esprit EDX 100 OTA

      × 1

    • Hard Case

      Foam-Lined Hard Case

      × 1

    • Mounting Rings

      Mounting Rings

      × 1

    • D-style Dovetail

      D-style Dovetail Plate

      × 1

  • Sky-Watcher USA Warranty