Sky-Watcher HAC125 DX 125mm f/2 Minigraph Astrograph

SKU: SKWS11250 MFR: S11250
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Key Features

  • Capture stunning astrophotos with the Sky-Watcher astrograph's fast f/2 focal ratio.
  • Enjoy diffraction-limited optical quality for crisp, clear views through this telescope.
  • The 125mm aperture gathers ample light, revealing faint celestial objects with ease.
  • Its portable design, at just 8.4 lbs, makes this telescope ideal for astronomy on the go.
  • Experience enhanced contrast thanks to Radiant Aluminum Quartz (RAQ) mirror coatings.
  • Achieve precise focus with the primary mirror helical focuser on this Sky-Watcher telescope.
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Sky-Watcher HAC125 DX Specifications

Optical

Optical

Jump to...
  • Optical Design

    Honders Advanced Catadioptric

  • Mirror Coating

    Radiant Aluminum Quartz (RAQ) Coatings

  • Reflectivity

    0.94

  • Mirror Type

    Mangin (Monolithic/Conical/Fused conical)

  • Corrector Coating

    HTMC

  • Glass Type

    Borosilicate

  • Primary Aperture

    125mm

  • F/Ratio

    2

  • Focal Length

    250mm

  • Image Circle

    16mm

  • Secondary Obstruction by Diameter

    53mm

  • Secondary Obstruction by Area

    0.425

  • Primary cell supports

    Rear Support

  • Optical Quality

    Diffraction limited (1/4 wave)

  • Collimatable Cell

    Primary

Physical

Jump to...
  • Focuser Type

    Primary focus

  • Focuser Size

    Primary Mirror Helical

  • Focuser: Dual or Single Speed

    Single

  • Compression Ring

    No

  • Optical Tube length

    15.7" (39.87cm)

  • Optical Tube diameter

    6.3" (16cm)

  • Weight

    8.4 lbs (3.81kg)

  • UPC Code

    810098970648

About Sky-Watcher HAC125 DX

The all-new Honders Advanced Catadioptric, or HAC125DX Minigraph is the smallest, fastest astrograph you can find.

The Honders Advanced Catadoptric optical design maximizes its glass with hybrid refractive and reflective surfaces to deliver the sharpest, fastest, lightest catadioptric mini astrograph (minigraph) available.

The Sky-Watcher Honders Advanced Catadioptric (HAC) telescope is a sophisticated, high-speed astrograph designed for fast, wide-field imaging in a compact package. Unlike other small refractor astrographs, the HAC125DX features a lightning-fast f/2 focal ratio allowing you to capture images 5x faster than a standard f/4.9 optic. With this kind of speed that means more data in less time and no need to autoguide!

Compared to the original HAC125 the HAC125DX features a rear focusing mechanism on the primary. This allows for a wider range of cameras to be used compared to the original model and makes focusing easier when the telescope is in use. The telescope features a 16mm image circle which is ideal for IMX533 and 585 cameras. While small, at only 15.7" long the HAC125DX offers a powerful imaging platform for both beginners and advanced imagers.

The HAC125DX is the ultimate grab-and-go astrograph. Fast optics and small size make it easier to get out and enjoy the hobby you love. Attach it to your favorite portable mount and you are ready to capture the universe in virtually no time at all! The HAC125DX is not just another astrograph, it's a Minigraph that is ready for all your astronomy adventures.

Sky-Watcher HAC125 DX Features

  • Honders Advanced Catadioptric optical design
  • Radiant Aluminum Quartz (RAQ) mirror coatings
  • Wide-open 250mm focal length
  • Fast f/2 focal ratio
  • 5" aperture diameter
  • Lightweight 8.4 lbs
  • 16mm image circle
  • Collimatable primary mirror cell
  • Rear primary mirror heliacal focuser
  • Clamshell rings with a V-style dovetail
  • Dual finderscope brackets
  • 1.25" barrel

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

Product Documents

User Manual

Key Features

  • Capture stunning astrophotos with the Sky-Watcher astrograph's fast f/2 focal ratio.
  • Enjoy diffraction-limited optical quality for crisp, clear views through this telescope.
  • The 125mm aperture gathers ample light, revealing faint celestial objects with ease.
  • Its portable design, at just 8.4 lbs, makes this telescope ideal for astronomy on the go.
  • Experience enhanced contrast thanks to Radiant Aluminum Quartz (RAQ) mirror coatings.
  • Achieve precise focus with the primary mirror helical focuser on this Sky-Watcher telescope.

What's in the box:

  • Sky-Watcher HAC125 DX 125mm f/2 Minigraph Astrograph
  • Clamshell Rings with V-Style Dovetail
  • Dual Finderscope Brackets
  • 1.25" Adapter
  • M42x0.75 Adapter
  • Dew Shield
  • Sky-Watcher 2 Year Limited Warranty