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SkyMaster 25x100
Item no. 71017
SRP: £379.00
Warranty: Limited Lifetime

Read the online review of the Celestron SkyMaster 25x70 by Best Binocular & Binocular Review Website here

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.

General Details:

  • 25x magnification porro prism binocular
  • Giant 100mm objective lens offers maximum image brightness in low-light and long-range conditions
  • Four-element objective lens for ultra sharp focus across the field of view
  • 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


Optical Design: Porro
Objective Lens Diameter (mm): 100 mm
Magnification (x): 25x
Apparent Field of View:
Exit Pupil (mm): 4 mm
Eye Relief (mm): 15 mm
Close Focus : 80 ft
IPD Max: 72 mm
IPD Min: 56 mm
Optical Coatings: Multi-Coated
Weight (oz): 140 oz (3969 g)
Prism Glass (Type): BaK-4
Twilight Factor: 50
Relative Brightness: 16
Weatherproof: Water Resistant
Tripod Adaptable: Yes


To discover more and to find your nearest Celestron dealer please visit our Dealer Page

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