Celestron Skymaster 18-40x80

Article number: 71021
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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.
  • 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
  • Limited Lifetime Warranty
Angular Field of View 18: 1.9°
Close Focus Distance 18x: 106.2 ft. / 32.4m
Exit Pupil (mm) 4.4 @ 18x: 2.0 @ 40x
Eye Relief (mm) 20.3 @ 18x
Linear Field of View 18x: 96.0 ft. @ 1,000 yds. / 33.2m @ 1000m
Magnification (x) 18-40x
Objective Lens Diameter (mm) 80 mm
Optical Coatings Multi-Coated
Prism Glass (Type) BaK-4
Relative Brightness 10.24
Tripod Adaptable Yes
Twilight Factor 44.72
Weatherproof Water Resistant
Weight (oz) 76 oz (2155 g)
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