Celestron 20x50 Ultima porro binoculars


Product information

  • Porro prism binoculars
  • Large 50mm objective lenses 
  • High powered 20x magnification for up-close views of distant subjects, including ships at sea
  • BaK-4 prisms and fully multi-coated optics deliver maximum light transmission through the optical path
  • Ergonomic body with synthetic rubber armour and a non-slip grip
  • Tripod adaptable for extended viewing sessions
  • Eyeglass friendly with generous eye relief and comfortable rubber eyecups
Magnification: 20x
Objective Lens Diameter: 50mm (1.97")
Angular Field of View: 3.1°
Linear Field of View (@1000 yds) / @1000 m): 162 ft (54 m)
Exit Pupil: 2.5mm (0.1")
Eye Relief: 14.5mm (0.57")
Close Focus: 22.9ft (7m)
Interpupillary Distance (max): 74mm (2.91")
Interpupillary Distance (min): 50mm (1.97")
Diopter Adjustment Range: ±6
Twilight Factor: 31.62
Relative Brightness: 18
Lens Coatings: Fully Multi-Coated
Prism Glass (Type): BaK-4
Prism Coatings: N/A
Weight: 26.8 oz (760 g)
Environmental Protection: Waterproof
Nitrogen Filled: Yes
Tripod Adaptable: Yes
Carrying Case: Black woven fabric case with hook-and-loop closure flap
Dimensions: 170mm x 185mm x 60mm (6.7" x 7.3" x 2.4")
Included Items: Case | Neck strap | Eyepiece covers | Tethered objective covers

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