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Celestron’s SkyMaster Series of large aperture binoculars are a phenomenal value for high performance binoculars ideal for astronomical viewing or for terrestrial (land) use - especially over long distances. Each SkyMaster model features high quality BaK-4 prisms and multi-coated optics for enhanced contrast. Celestron has designed and engineered the larger SkyMaster models to meet the special demands of extended astronomical or terrestrial viewing sessions.For maximum stability and secure optical alignment the 100 mm SkyMaster model features enhanced structural reinforcement to the main binocular body. As an additional convenience, the 100 mm SkyMaster model also includes an integral super rigid photo tripod adapter. The SkyMaster Series binoculars are built to provide years of magnificent views of the world around you and the heavens above.



  • 25x magnification porro prism binocular
  • Giant 100 mm objective lens offers maximum image brightness in low-light and long-range conditions
  • Ultra sharp focus across the field of view
  • Individual Eyepiece Focus to ensure optimal focus position
  • Multi-Coated optics for sharp, clear views
  • Suitable for long-range terrestrial or astronomical viewing
  • Protective rubber covering for ultra-firm grip
  • Integrated tripod adapter rod for ultra-stable tripod mounting
  • Long eye relief ideal for eyeglass wearers
  • Deluxe padded carrying case included for travel and safe storage
  • Video Tripod included for long observations.

Objective Lens Diameter (mm)100 mm 

Magnification (x)25x

Apparent Field of View3°

Exit Pupil (mm)4 mm 

Eye Relief (mm)15 mm

 Close Focus 80 ft 

IPD Max72 mmIPD Min56 mm

Optical CoatingsMulti-Coated

Weight (oz)140 oz (3969 g)

Prism Glass (Type)BaK-4T

wilight Factor50

Relative Brightness16

WeatherproofWater ResistantT

ripod AdaptableYes


Celestron SKYMASTER 25X100 astronomical BINOCULAR on video tripod


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