Celestron 20x80 SkyMaster Pro Binocular

Celestron 20x80 SkyMaster Pro Binocular


SSK # CLS-20X81SM-72031

Estimated 3-14 Days Delivery
1 Year ShaShinKi Warranty

Shopping Point 17.500 = RM17.50

Key Features

  • BAK4 Porro Prisms
  • XLT Fully Multicoated Optics
  • Wide Angle Viewing: 64°
  • 1.25" Astronomical Filter Compatible
  • Nitrogen-Filled, Water and Fogproof
  • Aluminum and Polycarbonate Chassis
  • Center Focusing with Diopter Adjustment
  • Built-In Standard 1/4"-20 Tripod Mount
  • Fold-Down and Winged Eyecups
  • Detachable Rail for Finderscope

Celestron 20x80 SkyMaster Pro Binocular

Designed as an ideal optic for wide-view astronomical or long-range terrestrial observation, the Celestron 20x80 SkyMaster Pro Binocular features their proprietary XLT multicoating system to reduce reflection and increase light transmission through the entire optical system. The porro prism configuration provides a rich depth of view and high-contrast to draw users into an immersive observational experience. Filter threads on the eyepieces are compatible with 1.25" astronomical filters to enhance the viewing experience by adding light pollution, neutral density, or colored filters. The combination of optical coatings, prism, over-sized 80mm objectives, and the ability to use filters produce user-specific high-contrast views that are bright and crisp.

To help reduce weight, the binocular housing is made from a combination of polycarbonate polymer and aluminum. The aluminum provides strength in key areas, while the polycarbonate is temperature-resistant to limit expansion and contraction in extreme temperatures, which can cause the optical components to move out collimation and preventing the ability to achieve sharp focus. Large objectives and long optical tubes make the SkyMaster Pro fairly heavy with a center of gravity biased forward, so hand-holding it may cause fatigue and noticeable hand-shake. A center stabilizer bar has a built-in 1/4"-20 tripod adapter to mount the instrument, with a detachable rail for a red-dot finderscope. To handle a wide range of environments, the optical tubes are nitrogen-filled and O-ring sealed to be water and fogproof.

Optical Performance
  • 20x magnification
  • 80mm objective lenses
  • BAK4 porro prism optical path
  • Proprietary XLT fully multicoated optics increases light transmission for bright high-contrast images
  • 168' field of view at 1000 yards
  • 64° wide-angle viewing
Use and Handling
  • Eyepiece threads accept any 1.25" astronomical filters
  • Detachable RSR (Reflex Sight Ready) rail for attaching an optional red dot finderscope
  • Includes standard fold-down and winged eyecups to block stray peripheral light that can affect vision
  • 15.5mm eye relief, 4.0mm exit pupil
Construction Details
  • Lightweight and durable polycarbonate and aluminum chassis
  • Nitrogen-filled for water and fogproof performance
  • Rubber armor protects against impacts and provides slip-resistant grip
  • Built-in tripod adapter for easy mounting
Prism Type Porro
Magnification 20x
Objective Lens Diameter 80mm
Angle of View 3.2° (actual)
Field-of-View 168' @ 1000 yd / 55.78 m @ 1000 m
Minimum Focus Distance 65.62' / 20 m
Exit Pupil Diameter 4.0  mm
Eye Relief 15.5  mm
Interpupillary Adjustment 56 - 72 mm / 2.20 - 2.83"
Dioptric Correction ±4
Focus Type Center
Tripod Mount Yes
Dimensions 12.6 x 10.0 x 3.6" / 32.00 x 25.40 x 9.14  cm
Weight 93.8 oz / 2659.23 g
Celestron 20x80 SkyMaster Pro Binocular
  • Tripod Adapter
  • Removable Finder Rail
  • 2 x Objective Caps
  • Rainguard
  • Neck Strap
  • Lens Cloth
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