Celestron SkyMaster 18-40x80mm Zoom Porro Binoculars

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Celestron SkyMaster 18-40x80mm Zoom Porro Binoculars

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. SkyMaster models feature 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.

Product Description

Celestron SkyMaster 18-40x80mm Zoom Porro Binoculars

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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. SkyMaster models feature 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.

Features Celestron SkyMaster 18-40x80mm Zoom Porro Binoculars

  • Lower magnification allows the user to locate a subject more easily and then zoom in for a close-up view
  • Multi-coated optics enhances sharpness of detail and crispness of color
  • High quality BaK-4 prisms provide higher light transmission for better viewing in low light conditions
  • Large objective diameter provides a comfortable viewing aperture at high magnification levels
  • Long eye relief for more comfortable for all users; essential for those wearing eyeglasses while viewing
  • Diopter adjustment allows for refinement of image to correct for any differences in strength between the users own eyes
  • Tripod adapter included to mount the binocular on a tripod for prolonged viewing sessions or simply for increased stability while observing

Specifications Celestron SkyMaster 18-40x80mm Zoom Porro Binoculars

Magnification18-40x
Objective Lens Diameter80mm (3.15″)
Focal Length of Objective Lens328.6mm (12.94″)
Angular Field of View18: 1.9°
Linear Field of View (@1000 yds) / @1000 m)96 ft (33.2 m) @18x
Exit Pupil4.4 @18x / 2.0 @40x
Eye Relief20.3 @18x
Close Focus106.2 ft (32.4 m) @18x
Interpupillary Distance (max)72mm (2.83″)
Interpupillary Distance (min)56mm (2.20″)
Diopter Adjustment Range-4 to +10
Twilight Factor44.72
Relative Brightness10.24
Limiting Stellar MagnitudeIdeal: 12.01
Moderate: 11.01
Poor: 10.01
Lens CoatingsMulti-Coated
Prism Glass (Type)BaK-4
Prism CoatingsN/A
Weight76 oz (2155 g)
Environmental ProtectionWater Resistant
Nitrogen FilledNo
Tripod AdaptableYes
Carrying CaseNylon
Dimensions228mm x 120mm x 355mm (9.0″ x 4.7″x 14.0″)
Included ItemsObjective lens caps
Rainguard
Carrying case
Neck strap
Lens cloth
Instruction manual
Solar Warning
  • Never look directly at the Sun with the naked eye or with this optic. Permanent and irreversible eye damage may result.
  • Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it.
  • Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.

 

 


Celestron SkyMaster – Manual


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Additional Information

Brand

Celestron

Model

SkyMaster 18-40x80mm

Made In

USA

Weight

2 kg

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