The Celestron UPCLOSE G2 Porro Binocular - 20x50 is a high quality but economically priced binocular, perfect for bird watching, sporting events, concerts, travelling and studying nature and wildlife. They have multi-coated optics which increase light transmission resulting in brighter and sharper images with high contrast levels. Their stylish rubber covered aluminum body protects from rough handling, and they have ergonomic thumb indents and finger ridges for extra non-slip comfort and ease of use. They come with a soft carrying case, binocular straps, and are also water resistant. SPECIFICATIONS Magnification (x) 20x Angular Field of View 3.2° Exit Pupil (mm) 2.5 mm Eye Relief (mm) 7 mm IPD Max 72 mm IPD Min 56 mm Optical Coatings Multi-Coated Weight (oz) 28 oz (794 g) Prism Glass (Type) BK7 Relative Brightness 6.25 Tripod Adaptable Yes