Nikon Travelite EX 10 x 25 CF Binoculars. Prism type: Porro. Compact and lightweight: 365 g. Multi-coated lenses with improved light transmission for a bright and brilliant image. Waterproof (up to 5 minutes at a depth of 2 m) and fog-free thanks to O-ring sealing and nitrogen filling. The large exit pupil distance provides a clear field of view, even for eyeglass wearers. Durable aluminum die-cast housing: robust design with rubber armoring for high shock resistance and safe, comfortable handling. Porro binoculars. Bring distant objects up close. Whether traveling, at a sporting event, hunting, or at sea - these binoculars are ideal for your active lifestyle. The used Porro prisms offer very high image quality as well as three-dimensional spatial vision.