The Nature Series Celestron Nature Porro Binocular
- 8x 42 are a waterproof high performance level pair of binoculars featuring a rubber covered aluminium body, fully multi-coated optics & high definition views. These binoculars feature state of the art design with a modern open frame style. Fully multi-coated optics & high precision BAK-4 prisms enhance the optical quality with maximum contrast & colour rendition. Twist up eyecups provide easy adjustment for your eyes. The Celestron Nature Porro Binocular
- 8x 42 are waterproof & fog-proof with nitrogen filled gas for added protection when out in damp environments. Quick Overview: Fully multi-coated optics Waterproof & fogproof Precision BAK-4 prisms Twist-up eyecups Rugged aluminum main body Rubber covered body protects the optics Soft Case Included Binocular Straps Attached Limited Lifetime Warranty Objective Lens Diameter (mm) 42 mm (1.65 in) Magnification 8 x Exit Pupil (mm) 5.3 mm (0.21 in) Eye Relief (mm) 20 mm (0.79 in) Apparent Field of View 7 deg Optical Coatings Fully Multi-Coated Prism Glass (Type) Bak-4 IPD Max 72 mm (2.83 in) IPD Min 56 mm (2.2 in) Twilight Factor 18 x Relative Brightness 28 Water Proof Yes Tripod Adaptable Yes Weight (oz) 31 oz (879 g)