HAC125DX

Estimated availability in june 2025

Introducing the all-new HAC125DX Minigraph — a breakthrough in portable, high-performance astrographs.

Built around the innovative Honders Advanced Catadioptric (HAC) design, this ultra-compact telescope combines refractive and reflective optics to deliver crystal-clear, high-speed imaging in a lightweight form factor. With its cutting-edge optical engineering, the HAC125DX stands out as the fastest and most efficient mini catadioptric astrograph on the market.

The Sky-Watcher HAC125DX is engineered for astrophotographers who want to capture stunning, wide-field images quickly and effortlessly. Boasting an impressive f/2 focal ratio, this scope is nearly five times faster than traditional f/4.9 systems — letting you collect more data in less time, without the hassle of autoguiding.

One of the major upgrades from the original HAC125 is the addition of a rear focusing mechanism on the primary mirror. This enhancement improves camera compatibility and makes fine-tuning focus far more convenient, especially during active imaging sessions. With a 16mm image circle, it's perfectly matched for cameras like the IMX533 and IMX585.

Despite its compact 40cm length, the HAC125DX delivers outstanding performance suitable for both newcomers and seasoned astrophotographers. It’s built to be portable, powerful, and ready whenever inspiration strikes.

Pair it with your favorite travel mount, and you’ll be imaging the cosmos in minutes. The HAC125DX isn’t just another small telescope — it’s a Minigraph designed to go wherever your astronomy journey takes you.

Please Note: The Camera and EQ-AL55i PRO mount shown in product photos are not included

 Technical Specifications HAC125DX

• Optical Design: Advanced Honders-style catadioptric system
• Focal Length: 250mm
• Focal Ratio: Ultra-fast f/2
• Aperture: 125mm (5 inches)
• Mirror Configuration: Mangin-type mirror (monolithic/conical/fused conical)
• Mirror Coating: Radiant Aluminum Quartz (RAQ)™ for enhanced reflectivity
• Corrector Coating: High Transmission Multi-Coating (HTMC)™
• Telescope Weight: 3.82 kg
• Tube Length: Compact 40cm body
• Image Circle: 16mm diameter – ideal for modern CMOS sensors
• Central Obstruction: 53mm
• Primary Mirror Mount: Collimatable cell for fine optical alignment
• Focusing Mechanism: Helical focuser mounted behind the primary mirror
• Tube Mounting: Includes tube rings with a 45mm wide dovetail plate
• Finder Mounts: Dual finder brackets for flexibility
• Eyepiece Port: 1.25-inch barrel compatibility
• Included Accessories: 1.25-inch visual back, M42x0.75 camera adapter, and a dew shield for moisture protection