Celestron SkyMaster PRO 20 x 80 Binocular


  • Large 80 mm objective lenses for excellent light gathering in low light conditions or for astronomical observing
  • Detachable RSR rail for attaching an optional red dot finderscope
  • Rubber armoured for improved ergonomics and protection from every day use in the field
  • Waterproof and nitrogen purged for use in all weather conditions

Availability: We are currently out of stock of this item, however one of our authorised dealers may have it in stock. Please check our dealer locator to find your nearest stockist.

Category: SKU: 72031 Tag:


Celestron’s SkyMaster Pro binoculars are ideal for amateur astronomers, nature and sports enthusiasts or for anyone that observes at great distances. Compared to lower-priced large aperture binoculars, the SkyMaster Pro series use superior optics, optical coatings, internal parts and housing materials. With large objective lenses, BaK-4 prisms and fully multi-coated optics utilising Celestron’s proprietary XLT coating technology, the view through a SkyMaster Pro is second to none at this impressive price point.

The SkyMaster Pro binoculars feature:

Massive Objective Lenses: Large 80 mm objective lenses have tremendous light gathering capabilities, delivering superior low light performance, even in the dimmest conditions. Choose SkyMaster Pro for use at dusk, dawn and nighttime astronomical viewing.

Fully Multi-Coated Optics and BaK-4 Prisms: Every air-to-glass optical surface is multi-coated with Celestron’s proprietary XLT coating technology. These coatings, coupled with BaK-4 prisms, increase light transmission through the optical path and deliver crisp, high contrast images with outstanding resolution.

Built in Tripod Adapter and RSR “Reflex Sight Ready” Rail: The built in tripod adaptor of the SkyMaster Pro 20×80 not only allows the binocular to be attached to a tripod for added stability but it also acts as a balance rail by sliding along the center support rod. A red-dot finder can also be attached to the center support rod utilizing the removable rail. When properly aligned with the binocular, the red-dot finder will allow objects to be brought into view quickly.

Lightweight, Waterproof Construction: A combination of polycarbonate and aluminium makes the SkyMaster Pro housing durable and lightweight. The housing’s protective rubber armour is extremely rugged and can stand up to tough use.

The binoculars have a fully waterproof housing for use in all weather conditions and provides peace of mind. The housing is also filled with dry nitrogen gas to prevent the internal lenses from fogging when moving between extreme temperatures or when using the binocular in damp conditions.

Enhanced Magnification: Get closer to the action by bringing distant objects into view with the binoculars’ 20x magnification. The magnification is great for observing celestial objects in greater detail, searching for wildlife or viewing a distant object on the horizon.



BBC Sky at Night Magazine January 2020

Objective Lens Diameter80mm (3.15″)
Angular Field of View3.2°
Linear Field of View (@1000 yds) / @1000 m)168 ft (56 m)
Exit Pupil4mm (.15″)
Eye Relief15.5mm (.61″)
Close Focus66.2 ft (20.2 m)
Interpupillary Distance (max)72mm (2.83″)
Interpupillary Distance (min)56mm (2.20″)
Diopter Adjustment Range± 4
Twilight Factor40
Relative Brightness16
Lens CoatingsFully Multi-Coated – XLT Coatings
Prism Glass (Type)BaK-4
Prism CoatingsN/A
Weight86.4 oz (2449 g)
Environmental ProtectionWaterproof
Nitrogen FilledYes
Tripod AdaptableYes
Carrying CaseDeluxe Nylon
Dimensions330.2mm x 241.3mm x 101.6mm (13″ x 9.5″ x 4″)
Included AccessoriesReflex Sight Rail (RSR)| Objective lens caps| Interchangeable flared eyecups| Rainguard| Neck strap| Lens cloth| Instruction manual