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Celestron SkyMaster 20x80 Binocular

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SKU 71018

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  • Suitable for terrestrial or astronomical viewing
  • 20x magnification porro prism binocular
  • Large 80 mm objective lens offers maximum image brightness in low-light and long-range conditions
  • Sharp focus across the field of view
  • Multi-Coated optics for sharp, clear views
  • Protective rubber covering for ultra-firm grip
  • Large centre focus knob for easy focusing
  • Long eye relief ideal for eyeglass wearers
  • Tripod adaptor and carrying case included

The Celestron 20x80 SkyMaster binocular offers 20x magnification and a large aperture 80mm objective. An integrated tripod adaptor is included to allow the binocular to be easily mounted on a suitable (user supplied) tripod.

The Celestron SkyMaster large aperture binocular series have been designed and engineered to meet the special demands of extended astronomical or terrestrial viewing sessions. The binoculars are great value high performance binoculars and are available in 70mm, 80mm and a whopping 100mm apertures, making them ideal for astronomical viewing or for terrestrial (land) use - especially over long distances.

Each SkyMaster binocular model features high quality BaK-4 prisms and multi-coated optics for enhanced contrast. The bodies have a protective rubber external covering for protection and for a firm grip. A large central focus knob aid focusing and the binoculars have long eye relief making them ideal for those wearing glasses. 

Each SkyMaster model comes with a storage/carry bag, lens caps, integrated tripod adaptor, lanyard and cloth.


Magnification 20x
Objective Lens Diameter 80mm (3.15")
Angular Field of View 3.7°
Linear Field of View (@1000 yds) / @1000 m) 195 ft (65 m)
Exit Pupil 4mm (.15")
Eye Relief 18mm (.71")
Close Focus 108 ft (33 m)
Interpupillary Distance (max) 72mm (2.83")
Interpupillary Distance (min) 56mm (2.20")
Diopter Adjustment Range -4 to +8
Twilight Factor 40
Relative Brightness 16
Lens Coatings Multi-Coated
Prism Glass (Type) BaK-4
Prism Coatings N/A
Weight 75 oz (2126 g)
Environmental Protection Water Resistant
Nitrogen Filled No
Tripod Adaptable Yes
Carrying Case Nylon
Dimensions 228mm x 120mm x 325mm (9.0" x 4.7" x 12.8")
Included Accessories Objective lens caps| Rainguard| Carrying case| Neck strap| Lens cloth| Instruction manual