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Large black Porro binoculars with 80mm objective lenses and rubber armouring

Celestron

Celestron SkyMaster Pro ED 20x80mm Porro Binoculars

SKU CH-S94X-M9ZFR

High-power 20x80mm binoculars with ED glass eliminating colour fringing, BaK-4 prisms and fully multi-coated optics for bright, sharp views; 1.25-inch filter threads add astronomical versatility

  • TypeBinoculars
  • 20x magnification brings distant celestial objects into detailed view
  • 80mm objective lenses gather abundant light for bright low-light observation
  • Extra-Low Dispersion glass virtually eliminates chromatic aberration for true colour fidelity
  • Fully multi-coated XLT optics maximise light transmission across the visible spectrum
  • Threaded eyepieces accept standard 1.25-inch astronomical filters for customised viewing

Celestron SkyMaster Pro ED 20x80mm

The Celestron SkyMaster Pro ED 20x80mm Porro binoculars use Extra-Low Dispersion glass to virtually eliminate chromatic aberration. Fully multi-coated optics with proprietary XLT coating maximise light transmission across the visible spectrum. High-quality BaK-4 prisms and 80mm objective lenses deliver bright, detailed views in low-light conditions. They suit amateur astronomers and long-distance observers seeking edge-to-edge sharpness.

Threaded eyepieces accept 1.25-inch filters

Threaded eyepieces accept all standard 1.25-inch astronomical eyepiece filters to enhance detail or reduce light-pollution effects. This flexibility upgrades basic fixed-eyepiece binoculars that cannot take filters. The jump is worth it when you need to tailor the view for specific celestial targets or bright urban skies. Without filter threads you lose the ability to isolate wavelengths or cut glare from artificial lighting.

Large 80mm objectives demand stable support

The 80mm aperture gathers substantial light for dusk, dawn and night observation but adds mass that makes hand-held use difficult. A sturdy tripod or binocular mount is needed to realise the optical performance. The Porro prism design provides a wide interpupillary range for comfortable viewing. Buyers who want a lightweight grab-and-go instrument for daytime use will find these binoculars too bulky and heavy.

Highlights

  • 20x magnification brings distant celestial objects into detailed view
  • 80mm objective lenses gather abundant light for bright low-light observation
  • Extra-Low Dispersion glass virtually eliminates chromatic aberration for true colour fidelity
  • Fully multi-coated XLT optics maximise light transmission across the visible spectrum
  • Threaded eyepieces accept standard 1.25-inch astronomical filters for customised viewing

Specifications

TypeBinoculars

Questions about this item

What size tripod adapter or mount does the 80mm binocular body require?

The binoculars accept a standard 1/4‑20 tripod socket on the centre hinge, so any photographic tripod or L‑bracket with that thread will hold the 80mm chassis securely.

How do I fit 1.25‑inch astronomical filters and what step is often missed?

Unscrew the threaded eyepiece barrels, drop the 1.25‑inch filter into the internal thread, then re‑tighten; the step people forget is seating the filter flat before the final turn.

What maintenance will the ED glass and XLT coatings need over time?

Clean only with a puffer, soft brush and optical fluid on a lint‑free cloth; the sealed, nitrogen‑purged body prevents internal fogging, so no internal servicing is required.

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